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Skylake
CPUID code	0406e3h, 0506e3h
Product code	; 80662 (mainstream and mobile Xeon E3); ; 80673 (enthusiast and server); ;
L1 cache;	64 kiB per core
L2 cache	256 kiB per core; (1 MiB per core for Skylake-X)
L3 cache	Up to 2 MiB per core; (1.375 MiB per core for Skylake-X)
Created	Launched at Gamescom on August 5, 2015;
Transistors	; 14 nm bulk silicon 3D transistors (Tri-Gate)
Architecture	Skylake x86;
Instructions	; MMX, AES-NI, CLMUL, FMA3;
Extensions	; ; x86-64, Intel 64; ; ; ; SSE, SSE2, SSE3, SSSE3, SSE4, SSE4.1, SSE4.2; ; ; ; ADX, AVX, AVX2, AVX-512 (Xeon 'Purley' only), MPX, TXT, TSX, SGX; ; ; ; VT-x, VT-d; ; ;
Socket(s)	; LGA 1151; ; LGA 2066; ; LGA 3647; ; BGA 1168; ; BGA 1356; ; BGA 1515; ; BGA 1440; ; ;
Predecessor	; Broadwell (tick/process)
Successor	; Kaby Lake (optimization)
Brand name(s)	; Core i3; ; Core i5; ; Core i7; ; Core i9; ; Core m3; ; Core m5; ; Core m7; ; Xeon; ; Celeron; ; Pentium; ; ;

Skylake^[7]^[8] is the codename used by Intel for a processor microarchitecture that was launched in August 2015^[9] succeeding the Broadwell microarchitecture.^[10] Skylake is a microarchitecture redesign using the same 14 nm manufacturing process technology^[11] as its predecessor, serving as a "tock" in Intel's "tick–tock" manufacturing and design model. According to Intel, the redesign brings greater CPU and GPU performance and reduced power consumption. Skylake CPUs share its microarchitecture with Kaby Lake, Coffee Lake and Cannon Lake CPUs.

Skylake is the last Intel platform on which Windows earlier than Windows 10 will be officially supported by Microsoft,^[12] although enthusiast-created modifications exist that allow Windows 8.1 and earlier to continue to receive updates on later platforms.^[13]

Some of the processors based on the Skylake microarchitecture are marketed as "6th-generation Core".^[14]^[15]^[16]

8 List of Skylake processor models
- 8.1 Mainstream desktop processors
- 8.2 High-end desktop processors
- 8.3 Mobile processors
- 8.4 Workstation processors
- 8.5 Server processors
- 8.6 "Skylake-SP" (14 nm) Scalable Performance
  - 8.6.1 Xeon Bronze and Silver (dual processor)
  - 8.6.2 Xeon Gold (quad processor)
  - 8.6.3 Xeon Platinum (octa processor)

9 See also

10 References

11 External links

Development history

Skylake's development, as with processors such as Banias, Dothan, Conroe, Sandy Bridge and Ivy Bridge, was primarily undertaken by Intel Israel^[17] at its engineering research center in Haifa, Israel. The Haifa development team worked on the project for four years, and faced many challenges: "But by re-writing the microarchitecture and developing new concepts such as the Speed Shift Technology, we created a processor for 4.5 W to 45 W mobile devices, and up to 91 W for desktop devices."^[18] The Skylake processors are used to power a wide range of devices, from fanless laptops, all the way to desktops.^[19] "Because of Skylake's features, companies will be able to release laptop PCs that are half as thick and half as heavy as those from five years ago," according to Intel.^[20]

In September 2014, Intel announced the Skylake microarchitecture at the Intel Developer Forum in San Francisco, and that volume shipments of Skylake CPUs were scheduled for the second half of 2015. Also, the Skylake development platform was announced to be available in Q1 2015. During the announcement, Intel also demonstrated two computers with desktop and mobile Skylake prototypes: the first was a desktop testbed system, running the latest version of 3DMark, while the second computer was a fully functional laptop, playing 4K video.^[21]

An initial batch of Skylake CPU models (6600K and 6700K) was announced for immediate availability during the Gamescom on August 5, 2015,^[1] unusually soon after the release of its predecessor, Broadwell, which had suffered from launch delays.^[22] Intel acknowledged in 2014 that moving from 22 nm (Haswell) to 14 nm (Broadwell) had been its most difficult process to develop yet, causing Broadwell's planned launch to slip by several months;^[23] yet, the 14 nm production was back on track and in full production as of Q3 2014.^[24] Industry observers had initially believed that the issues affecting Broadwell would also cause Skylake to slip to 2016, but Intel was able to bring forward Skylake's release and shorten Broadwell's release cycle instead.^[25]^[26] As a result, the Broadwell architecture had an unusually short run.^[25]

Overclocking of unsupported processors

Officially Intel supported overclocking of only the "K" and "X" versions of Skylake processors. However, it was later discovered that other "non-K" chips could be overclocked by modifying the base clock value – a process made feasible by the base clock applying only to the CPU, RAM, and integrated graphics on Skylake. Through beta UEFI firmware updates, some motherboard vendors, such as ASRock (which prominently promoted it under the name "Sky OC") allowed the base clock to be modified in this manner.^[27]^[28]

In February 2016, however, an ASRock firmware update removed the feature. On February 9, 2016, Intel announced that it would no longer allow such overclocking of non-K processors, and that it had issued a CPU microcode update that removes the function.^[29]^[30]^[31] In April 2016, ASRock started selling motherboards that allow overclocking of unsupported CPUs using an external clock generator.^[32]^[33]

Operating system support

In January 2016, Microsoft announced that it would end support of Windows 7 and Windows 8.1 on Skylake processors effective July 17, 2017; after this date, only the "most critical" updates for the two operating systems would be released for Skylake users if they have been judged not to affect the reliability of the OS on older hardware, and Windows 10 would be the only Microsoft Windows platform officially supported on Skylake, as well as all future Intel CPU microarchitectures beginning with Skylake's successor Kaby Lake. Terry Myerson stated that Microsoft had to make a "large investment" in order to reliably support Skylake on older versions of Windows, and that future generations of processors would require further investments. Microsoft also stated that due to the age of the platform, it would be "challenging" for newer hardware, firmware, and device driver combinations to properly run under Windows 7.^[34]^[35]

On March 18, 2016, in response to criticism over the move, primarily from enterprise customers, Microsoft announced revisions to the support policy, changing the cutoff for support and non-critical updates to July 17, 2018 and stating that Skylake users would receive all critical security updates for Windows 7 and 8.1 through the end of extended support.^[36]^[37] In August 2016, citing a "strong partnership with our OEM partners and Intel", Microsoft stated that it would continue to fully support 7 and 8.1 on Skylake through the end of their respective lifecycles.^[38]^[39] In addition, an enthusiast-created modification was released that disabled the Windows Update check and allowed Windows 8.1 and earlier to continue to be updated on this and later platforms.^[13]

As of Linux kernel 4.10, Skylake mobile power management is in reasonably good shape with most Package C states supported seeing some use. If this is not the case, then the cause is likely bugs in the system firmware of the particular computer, which might be resolved by updating the BIOS. The user can easily optimize power management beyond the Linux default settings with the PowerTOP utility; for those who use Lennart Poettering's systemd, PowerTOP provides a service which will start up with the computer and auto-tune various settings to reduce power usage.^[40] Linux 4.11 enables Frame-Buffer Compression for the integrated graphics chipset by default, which lowers power consumption.^[41] Battery runtime should be similar to Windows 10 and possibly better, but further improvements can still be made.

Skylake is fully supported on OpenBSD 6.2 and later, including accelerated graphics.^[42]

Features

Skylake i7-6700K: Top view

Skylake i7-6700K: Bottom view

Like its predecessor, Broadwell, Skylake is available in five variants, identified by the suffixes "S" (SKL-S), "X" (SKL-X), "H" (SKL-H), "U" (SKL-U), and "Y" (SKL-Y). SKL-S and SKL-X contain overclockable "K" and "X" variants with unlocked multipliers.^[43] The H, U and Y variants are manufactured in ball grid array (BGA) packaging, while the S and X variants are manufactured in land grid array (LGA) packaging using a new socket, LGA 1151 (LGA 2066 for Skylake X).^[44] Skylake is used in conjunction with Intel 100 Series chipsets, also known as Sunrise Point.^[45]

The major changes between the Haswell and Skylake architectures include the removal of the fully integrated voltage regulator (FIVR) introduced with Haswell.^[46] On the variants that will use a discrete Platform Controller Hub (PCH), Direct Media Interface (DMI) 2.0 is replaced by DMI 3.0, which allows speeds of up to 8 GT/s.

Skylake's U and Y variants support one DIMM slot per channel, while H and S variants support two DIMM slots per channel.^[44] Skylake's launch and sales lifespan occur at the same time as the ongoing SDRAM market transition, with DDR3 SDRAM memory gradually being replaced by DDR4 memory. Rather than working exclusively with DDR4, the Skylake microarchitecture remains backward compatible by interoperating with both types of memory. Accompanying the microarchitecture's support for both memory standards, a new SO-DIMM type capable of carrying either DDR3 or DDR4 memory chips, called UniDIMM, was also announced.^[47]

Skylake's few P variants have a reduced on-die graphics unit (12 execution units enabled instead of 24 execution units) over their direct counterparts; see the table below. In contrast, with Ivy Bridge CPUs the P suffix was used for CPUs with completely disabled on-die video chipset.

Other enhancements include Thunderbolt 3.0, SATA Express, Iris Pro graphics with Direct3D feature level 12_1 with up to 128 MB of L4 eDRAM cache on certain SKUs.^[48] The Skylake line of processors retires VGA support,^[49] while supporting up to five monitors connected via HDMI 1.4, DisplayPort 1.2 or Embedded DisplayPort (eDP) interfaces.^[50] HDMI 2.0 (4K@60 Hz) is only supported on motherboards equipped with Intel’s Alpine Ridge Thunderbolt controller.^[51]

The Skylake instruction set changes include Intel MPX (Memory Protection Extensions) and Intel SGX (Software Guard Extensions). Future Xeon variants will also have Advanced Vector Extensions 3.2 ("AVX-512F").^[3]^[4]

Skylake-based laptops may use wireless technology called Rezence for charging, and other wireless technologies for communication with peripherals. Many major PC vendors have agreed to use this technology in Skylake-based laptops, which should be released by the end of 2015.^[52]

The integrated GPU of Skylake's S variant supports on Windows DirectX 12 Feature Level 12_1, OpenGL 4.5 with latest Windows 10 driver update^[53] (OpenGL 4.5 on Linux^[54]) and OpenCL 2.0 standards, as well as some modern hardware video encoding/decoding formats such as VP9 (GPU accelerated decode only), VP8 and HEVC (hardware accelerated 8-bit encode/decode and GPU accelerated 10-bit decode).^[55]^[56]

Intel also released unlocked (capable of overclocking) mobile Skylake CPUs.^[57]

Unlike previous generations, Skylake-based Xeon E3 no longer works with a desktop chipset that supports the same socket, and requires either the C232 or the C236 chipset to operate.

Known issues

Short loops with a specific combination of instruction use may cause unpredictable system behavior on CPUs with hyperthreading. A microcode update was issued to fix the issue.^[58]

Skylake is vulnerable to Spectre attacks.^[59]
In fact, it is more vulnerable than other processors because it uses indirect branch speculation not just on indirect branches but also when the return prediction stack underflows.

The pause latency has been increased dramatically, which can cause issues with older programs or libraries using pause instructions.^[60]^[61]

Architecture

Improved front-end, deeper out-of-order buffers, improved execution units, more execution units (third vector integer ALU(VALU)) for five ALUs in total, more load/store bandwidth, improved hyper-threading (wider retirement), speedup of AES-GCM and AES-CBC by 17% and 33% accordingly.^[62]^[63]

14 nm manufacturing process^[64]

LGA 1151 socket for mainstream desktop processors and LGA 2066 socket for enthusiast gaming/workstation "X-series" processors

100-series chipset (Sunrise Point)^[65]

"X"-series uses X299-series chipset

Thermal design power (TDP) up to 95 W (LGA 1151); up to 165 W (LGA 2066)^[66]

Support for both DDR3L SDRAM and DDR4 SDRAM in mainstream variants, using custom UniDIMM SO-DIMM form factor^[67]^[68]^[69] with up to 64 GB of RAM on LGA 1151 variants. Usual DDR3 memory is also supported by certain motherboard vendors even though Intel doesn't officially support it.^[70]^[71]

Support for 16 PCI Express 3.0 lanes from CPU, 20 PCI Express 3.0 lanes from PCH (LGA 1151), 44 PCI Express 3.0 lanes for Skylake-X

Support for Thunderbolt 3 (Alpine Ridge)^[72]

64 to 128 MB L4 eDRAM cache on certain SKUs

Up to four cores as the default mainstream configuration^[67] and up to 18 cores for X-series

AVX-512: F, CD, VL, BW, and DQ for some future Xeon variants, but not Xeon E3^[3]

Intel MPX (Memory Protection Extensions)

Intel SGX (Software Guard Extensions)

Intel Speed Shift^[73]

Skylake's integrated Gen9 GPU supports Direct3D 12 at the feature level 12_1^[7]^[74]^[75]

Full fixed function HEVC Main/8bit encoding/decoding acceleration. Hybrid/Partial HEVC Main10/10bit decoding acceleration. JPEG encoding acceleration for resolutions up to 16,000×16,000 pixels. Partial VP9 encoding/decoding acceleration.^[76]

The L1 cache for all Skylake CPUs consists of two parts: data and instructions, whereas the former is equal to 32KB times the number of cores, and the latter is calculated the same way. So, e.g. for a six core model it will be equal to 32*6 + 32*6 = 384KB.

Enhancements of Intel Processor Trace: fine grained timing through CYC packets (cycle-accurate mode) and support for IP address filtering.^[77]

Configurations

Skylake processors are produced in five main families: Y, U, H, S, and X. Multiple configurations are available within each family:^[44]

Feature	Family
Feature	Y	U	H	T	S	R	X	EX	EP
Integrated L4 cache		•	•			•
Low-power mobile/embedded systems	•	•	•	•
Socket	BGA			LGA 1151			LGA 2066	LGA 3647
DDR3L SDRAM	•	•	•	•	•	•
DDR4 SDRAM		•	•	•	•	•	•
128 GB of physical RAM							•
28 to 44 PCIe 3.0 lanes							•

List of Skylake processor models

Mainstream desktop processors

Common features of the mainstream desktop Skylake CPUs:

DMI 3.0 and PCIe 3.0 interfaces

Dual channel memory support in the following configurations: DDR3L-1600 1.35 V (32GiB maximum) or DDR4-2133 1.2 V (64GiB maximum). DDR3 is unofficially supported through some motherboard vendors^[78]^[79]^[80]

≥16 PCI-E 3.0 lanes

The Core-branded processors support the AVX2 instruction set. The Celeron and Pentium-branded ones support only SSE4.1/4.2

350 MHz base graphics clock rate

Cores (threads)	Processor branding and model		CPU clock rate	Turbo clock GHz Num of cores			GPU	EUs	Max graphics clock rate	L2 cache	L3 cache	L4 cache (eDRAM)	TDP	Socket	Release date	Release price (USD)
Cores (threads)	Processor branding and model		CPU clock rate	1	2	4	GPU	EUs	Max graphics clock rate	L2 cache	L3 cache	L4 cache (eDRAM)	TDP	Socket	Release date	Release price (USD)
4 (8)	Core i7	6700K	4.0 GHz	4.2	4.0	4.0	HD 530	24	1150 MHz ^[81]	4 × 256 KB	8 MB		91 W	LGA 1151	August 5, 2015	$339
		6785R	3.3 GHz	3.9	3.8	3.5	Iris Pro 580	72				128 MB	65 W	FCBGA1440	May 3, 2016	$370
		6700	3.4 GHz	4.0	3.9	3.7	HD 530	24				N/A	65 W	LGA 1151	September 1, 2015	$303
		6700T	2.8 GHz	3.6	3.5	3.4							35 W		September 1, 2015	$303
4 (4)	Core i5	6600K	3.5 GHz	3.9	3.8	3.6					6 MB		91 W		August 5, 2015	$242
		6685R	3.2 GHz	3.8	3.7	3.3	Iris Pro 580	72				128 MB	65 W	FCBGA1440	May 3, 2016	$288
		6600	3.3 GHz	3.9	3.8	3.6	HD 530	24				N/A		LGA 1151	September 1, 2015	$213
		6585R	2.8 GHz	3.6	3.5	3.1	Iris Pro 580	72	1100 MHz			128 MB		FCBGA1440	May 3, 2016	$255
		6500	3.2 GHz	3.6	3.5	3.3	HD 530	24	1050 MHz			N/A		LGA 1151	September 1, 2015	$192
		6600T	2.7 GHz	3.5	3.4	3.3			1100 MHz				35 W		Q3 2015	$213
		6500T	2.5 GHz	3.1	3.0	2.8			1100 MHz				35 W		Q3 2015	$192
		6402P	2.8 GHz	3.4	3.4	3.2	HD 510	12	0950 MHz				65 W		December 27, 2015	$182
		6400T	2.2 GHz	2.8	2.7	2.5	HD 530	24					35 W		Q3 2015
		6400	2.7 GHz	3.3	3.3	3.1							65 W		August 5, 2015
2 (4)	Core i3	6320	3.9 GHz	N/A					1150 MHz	2 × 256 KB	4 MB		51 W		TBD	$149
		6300	3.8 GHz						1150 MHz		4 MB				TBD	$138
		6100	3.7 GHz						1050 MHz		3 MB				October 2015	$117
		6300T	3.3 GHz						0950 MHz		4 MB		35 W			$138
		6100T	3.2 GHz						0950 MHz		3 MB		35 W			$117
		6098P	3.6 GHz				HD 510	12	1050 MHz				54 W		December 27, 2015	$117
2 (2)	Pentium	G4520	3.6 GHz				HD 530	24					51 W		October 2015	$86
		G4500	3.5 GHz										51 W		October 2015	$75
		G4500T	3.0 GHz						0950 MHz				35 W		Q3 2015	$75
		G4400	3.3 GHz				HD 510	12	1000 MHz				54 W		October 2015	$64
		G4400T	2.9 GHz						0950 MHz				35 W		Q3 2015	$64
		G4400TE	2.4 GHz										35 W		Q4 2015	$70
	Celeron	G3920	2.9 GHz								2 MB		51 W			$52
		G3900	2.8 GHz										51 W			$42
		G3900TE	2.3 GHz										35 W			$42
		G3900T	2.6 GHz										35 W			?

High-end desktop processors

Common features of the high performance Skylake-X CPUs:

Quad channel memory support for DDR4-2400 (on the i7-7800X) or DDR4-2666 (on all other CPUs)^[82] up to 128GiB

28 (for the i7-7800X and i7-7820X) to 44 (for all other CPUs) PCI-E 3.0 lanes

In addition to the AVX2 instruction set, they also support the AVX-512 instructions

No built-in iGPU (integrated graphics processor)

Turbo Boost Max Technology 3.0 for up to 2/4 threads workloads for CPUs that have 8 cores and more (7820X, 7900X, 7920X, 7940X, 7960X, 7980XE, and all 9th generation chips)^[83]

A different cache hierarchy (in comparison to mainstream Skylake CPUs)

7th generation Skylake-X high-end desktop CPUs
Cores (threads)	Processor branding and model		CPU clock rate	Turbo clock GHz		L2 cache	L3 cache	TDP	Socket	Release date	Release price (USD)
Cores (threads)	Processor branding and model		CPU clock rate	TB 2.0	TB Max 3.0	L2 cache	L3 cache	TDP	Socket	Release date	Release price (USD)
18 (36)	Core i9 ^[84]	7980XE	2.6 GHz	4.2	4.4	1 MB per core	1⅜ MB per core	165 W	LGA 2066	September 25, 2017^[85]	$1999
16 (32)		7960X	2.8 GHz	4.2							$1699
14 (28)		7940X	3.1 GHz	4.3							$1399
12 (24)		7920X	2.9 GHz					140 W		August 28, 2017	$1189
10 (20)		7900X	3.3 GHz		4.5					June 19, 2017	$999
8 (16)	Core i7	7820X	3.6 GHz		4.5						$599
6 (12)	Core i7	7800X	3.5 GHz	4.0	N/A						$389

9th generation Skylake-X high-end desktop CPUs
Cores (threads)	Processor branding and model		CPU clock rate	Turbo clock GHz		L2 cache	L3 cache	TDP	Socket	Release date	Release price (USD)
Cores (threads)	Processor branding and model		CPU clock rate	TB 2.0	TB Max 3.0	L2 cache	L3 cache	TDP	Socket	Release date	Release price (USD)
18 (36)	Core i9 ^[86]	9980XE	3.0 GHz	4.4	4.5	1 MB per core	24.75 MB	165 W	LGA 2066	TBA	TBA
16 (32)		9960X	3.1 GHz				22 MB
14 (28)		9940X	3.3 GHz				19.25 MB
12 (24)		9920X	3.5 GHz
10 (20)		9900X	3.5 GHz
10 (20)		9820X	3.3 GHz	4.1	4.2		16.5 MB
8 (16)	Core i7	9800X	3.8 GHz^[87]	4.4	4.5		16.5 MB

Mobile processors

See also "Server, Mobile" below for mobile workstation processors.

Target segment	Cores (threads)	Processor branding and model		CPU clock rate	CPU Turbo clock rate			GPU	GPU clock rate		L3 cache	L4 cache	Max. PCIe lanes	TDP	cTDP		Release date	Price (USD)
Target segment	Cores (threads)	Processor branding and model		CPU clock rate	Single core	Dual core	Quad core	GPU	Base	Max	L3 cache	L4 cache	Max. PCIe lanes	TDP	Up	Down	Release date	Price (USD)
Performance	4 (8)	Core i7	6970HQ	2.8 GHz	3.7 GHz	?		Iris Pro 580	350 MHz	1050 MHz	8 MB	128 MB	16	45 W	N/A	35 W	Q1 2016	$623
			6920HQ	2.9 GHz	3.8 GHz	3.6 GHz	3.4 GHz	HD 530		1050 MHz		N/A					September 1, 2015	$568
			6870HQ	2.7 GHz	3.6 GHz	?		Iris Pro 580		1000 MHz		128 MB					Q1 2016	$434
			6820HQ			3.4 GHz	3.2 GHz	HD 530		1050 MHz		N/A					September 1, 2015	$378
			6820HK			3.4 GHz	3.2 GHz	HD 530		1050 MHz		N/A					September 1, 2015	$378
			6770HQ	2.6 GHz	3.5 GHz	?		Iris Pro 580		950 MHz	6 MB	128 MB					Q1 2016	$434
			6700HQ	2.6 GHz	3.5 GHz	3.3 GHz	3.1 GHz	HD 530		1050 MHz	6 MB	N/A					September 1, 2015	$378
Mainstream	2 (4)		6660U	2.4 GHz	3.4 GHz	3.2 GHz	N/A	Iris 540	300 MHz		4 MB	64 MB	12	15 W		9.5 W	TBD	$415
			6650U	2.2 GHz		3.2 GHz		Iris 540				64 MB				9.5 W	TBD	$415
			6600U	2.6 GHz		N/A		HD 520				N/A			25 W	7.5 W	September 1, 2015	$393
			6567U	3.3 GHz	3.6 GHz	3.4 GHz		Iris 550		1100 MHz		64 MB		28 W	N/A	23 W	TBD	TBD
			6560U	2.2 GHz	3.2 GHz	3.1 GHz		Iris 540		1050 MHz		64 MB		15 W		9.5 W	TBD	TBD
			6500U	2.5 GHz	3.1 GHz	3.0 GHz		HD 520		1050 MHz		N/A		15 W		7.5 W	September 1, 2015	$393
	4 (4)	Core i5	6440HQ	2.6 GHz	3.5 GHz	3.3 GHz	3.1 GHz	HD 530	350 MHz	950 MHz	6 MB	N/A	16	45 W		35 W	September 1, 2015	$250
	2 (4)		6360U	2.0 GHz	3.1 GHz	2.9 GHz	N/A	Iris 540	300 MHz	1000 MHz	4 MB	64 MB	12	15 W		9.5 W	TBD	$304
	4 (4)		6350HQ	2.3 GHz	3.2 GHz	?		Iris Pro 580	350 MHz	900 MHz	6 MB	128 MB	16	45 W		35 W	Q1 2016	$306
	4 (4)		6300HQ	2.3 GHz	3.2 GHz	3.0 GHz	2.8 GHz	HD 530	350 MHz	950 MHz	6 MB	N/A	16	45 W		35 W	September 1, 2015	$250
	2 (4)		6300U	2.4 GHz	3.0 GHz	2.9 GHz	N/A	HD 520	300 MHz	1000 MHz	3 MB	N/A	12	15 W		7.5 W	September 1, 2015	$281
			6287U	3.1 GHz	3.5 GHz	3.3 GHz		Iris 550		1100 MHz	4 MB	64 MB		28 W		23 W	TBD	$304
			6267U	2.9 GHz	3.3 GHz	3.1 GHz		Iris 550		1050 MHz				28 W		23 W	TBD	$304
			6260U	1.8 GHz	2.9 GHz	2.7 GHz		Iris 540		950 MHz				15 W		9.5 W	TBD	$304
			6200U	2.3 GHz	2.8 GHz	2.7 GHz		HD 520		1000 MHz	3 MB	N/A		15 W		7.5 W	September 1, 2015	$281
		Core i3	6167U	2.7 GHz	N/A	N/A		Iris 550				64 MB		28 W		23 W	TBD	$304
			6157U	2.4 GHz				Iris 550				64 MB		28 W		23 W	Q3 2016	$304
			6100H	2.7 GHz				HD 530	350 MHz	900 MHz		N/A		35 W		N/A	September 1, 2015	$225
			6100U	2.3 GHz				HD 520	300 MHz	1000 MHz				15 W		7.5 W	September 1, 2015	$281
			6006U	2.0 GHz				HD 520	300 MHz	900 MHz				15 W		N/A	November, 2016	$281
		Core m7	6Y75	1.2 GHz	3.1 GHz	2.9 GHz		HD 515	300 MHz	1000 MHz	4 MB		10	4.5 W	7 W	3.5 W	September 1, 2015	$393
		Core m5	6Y57	1.1 GHz	2.8 GHz	2.4 GHz				900 MHz								$281
		Core m5	6Y54	1.1 GHz	2.7 GHz	2.4 GHz				900 MHz
		Core m3	6Y30	0.9 GHz	2.2 GHz	2.0 GHz				850 MHz						3.8 W
		Pentium	4405U	2.1 GHz	N/A	N/A		HD 510		950 MHz	2 MB			15 W	N/A	10 W	TBD	$161
		Pentium	4405Y	1.5 GHz	N/A	N/A		HD 515		800 MHz				6 W		4.5 W	TBD	$161
	2 (2)	Celeron	G3902E	1.6 GHz	N/A			HD 510	350 MHz	950 MHz			16	25 W		N/A	Q1 2016	$107
			G3900E	2.4 GHz					350 MHz	950 MHz			16	35 W		N/A	Q1 2016
			3955U	2.0 GHz					300 MHz	900 MHz			10	15 W		10 W	Q4 2015
			3855U	1.6 GHz					300 MHz	900 MHz			10	15 W		10 W	Q4 2015

Workstation processors

All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, FMA3, MPX, Enhanced Intel SpeedStep Technology (EIST), Intel 64, XD bit (an NX bit implementation), Intel VT-x, Intel VT-d, Turbo Boost (excluding W-2102 and W-2104), Hyper-threading (excluding W-2102 and W-2104), AES-NI, Intel TSX-NI, Smart Cache.

PCI Express lanes: 48

Supports up to 8 DIMMs of DDR4 memory, maximum 512 GB.

Model number	sSpec number	Cores (Threads)	Frequency	Turbo Boost all-core/2.0 (/max. 3.0)	L2 cache	L3 cache	TDP	Socket	I/O bus	Memory	Release date	Part number(s)	Release price (USD)
Xeon W-2102	SR3LG (U0)	4 (4)	2.9 GHz	N/A	4 × 1 MiB	8.25 MiB	120 W	LGA 2066	DMI 3.0	4 × DDR4-2400	29 August 2017	CD8067303532802	$202
Xeon W-2104	SR3LH (U0)	4 (4)	3.2 GHz	N/A	4 × 1 MiB	8.25 MiB	120 W	LGA 2066	DMI 3.0	4 × DDR4-2400	29 August 2017	CD8067303532903	$255
Xeon W-2123	SR3LJ (U0)	4 (8)	3.6 GHz	/3.9 GHz	4 × 1 MiB	8.25 MiB	120 W	LGA 2066	DMI 3.0	4 × DDR4-2666	29 August 2017	CD8067303533002	$294
Xeon W-2125	SR3LM (U0)	4 (8)	4 GHz	/4.5 GHz	4 × 1 MiB	8.25 MiB	120 W	LGA 2066	DMI 3.0	4 × DDR4-2666	29 August 2017	CD8067303533303	$444
Xeon W-2133	SR3LL (U0)	6 (12)	3.6 GHz	/3.9 GHz	6 × 1 MiB	8.25 MiB	140 W	LGA 2066	DMI 3.0	4 × DDR4-2666	29 August 2017	CD8067303533204	$617
Xeon W-2135	SR3LN (U0)	6 (12)	3.7 GHz	/4.5 GHz	6 × 1 MiB	8.25 MiB	140 W	LGA 2066	DMI 3.0	4 × DDR4-2666	29 August 2017	CD8067303533403	$835
Xeon W-2140B		8 (16)	3.2 GHz	/	8 × 1 MiB	11.00 MiB		LGA 2066	DMI 3.0	4 × DDR4-2666	2017		OEM for Apple
Xeon W-2145	SR3LQ (U0)	8 (16)	3.7 GHz	/4.5 GHz	8 × 1 MiB	11.00 MiB	140 W	LGA 2066	DMI 3.0	4 × DDR4-2666	29 August 2017	CD8067303533601	$1113
Xeon W-2150B		10 (20)	3 GHz	/	10 × 1 MiB	13.75 MiB		LGA 2066	DMI 3.0	4 × DDR4-2666	2017		OEM for Apple
Xeon W-2155	SR3LR (U0)	10 (20)	3.3 GHz	/4.5 GHz	10 × 1 MiB	13.75 MiB	140 W	LGA 2066	DMI 3.0	4 × DDR4-2666	29 August 2017	CD8067303533703	$1440
Xeon W-2175	SR3W2 (M0)	14 (28)	2.5 GHz	/4.3 GHz	14 × 1 MiB	19.25 MiB	140 W	LGA 2066	DMI 3.0	4 × DDR4-2666	15 October 2017	CD8067303842300	$1947
Xeon W-2195	SR3RX (U0)	18 (36)	2.3 GHz	/4.3 GHz	18 × 1 MiB	24.75 MiB	140 W	LGA 2066	DMI 3.0	4 × DDR4-2666	29 August 2017	CD8067303805901	$2553

Server processors

E3 series server chips all consist of System Bus 9 GT/s, max. memory bandwidth of 34.1 GB/s dual channel memory. Unlike its predecessor, the Skylake Xeon CPUs require either a C232 or a C236 chipset to operate.

Skylake E3-12xx and E3 15xx v5 SKUs
Target segment	Cores (threads)	Processor branding and model		GPU	Clock rate				L3 cache	L4 cache	TDP	Release date	Release price (USD) tray / box	Motherboard
					CPU		Graphics							Socket	Interface	Memory
					Normal	Turbo	Normal	Turbo						Socket	Interface	Memory
Server	4 (8)	Xeon E3 v5	1280v5	N/A	3.7 GHz	4.0 GHz	N/A		8 MB	N/A	80 W	Q4 15	$612 / —	LGA 1151	DMI 3 PCIe 3.0	DDR4 2133/1866 or DDR3L 1333/1600 with ECC
			1275v5	HD P530	3.6 GHz		350 MHz	1.15 GHz					$339 / —
			1270v5	N/A	3.6 GHz		N/A						$328 / $339
			1260Lv5	N/A	2.9 GHz	3.9 GHz	N/A				45 W		$294 / —
			1245v5	HD P530	3.5 GHz		350 MHz	1.15 GHz			80 W		$284 / —
			1240v5	N/A	3.5 GHz		N/A				80 W		$272 / $282
			1240Lv5		2.1 GHz	3.2 GHz					25 W		$278 / —
			1230v5		3.4 GHz	3.8 GHz					80 W		$250 / $260
	4 (4)		1235Lv5	HD P530	2.0 GHz	3.0 GHz	350 MHz	1.15 GHz			25 W		$250 / —
			1225v5	HD P530	3.3 GHz	3.7 GHz	350 MHz	1.15 GHz			80 W		$213 / —
			1220v5	N/A	3.0 GHz	3.5 GHz	N/A				80 W		$193 / —
Mobile	4 (8)		1575Mv5	Iris Pro 580	3.0 GHz	3.9 GHz	350 MHz	1.1 GHz		128 MB	45 W	Q1 16	$1207 / —	BGA 1440		DDR4-2133 LPDDR3-1866 DDR3L-1600 with ECC
			1545Mv5	Iris Pro 580	2.9 GHz	3.8 GHz		1.05 GHz		128 MB		Q1 16	$679 / —
			1535Mv5	HD P530	2.9 GHz	3.8 GHz				N/A		Q3 15	$623 / —
			1505Mv5		2.8 GHz	3.7 GHz						Q3 15	$434 / —
Server/ embedded			1505Lv5		2.0 GHz	2.8 GHz		1.0 GHz			25 W	Q4 15	$433 / —

"Skylake-SP" (14 nm) Scalable Performance

Xeon Platinum supports up to 8 sockets. Xeon Gold supports up to 4 sockets. Xeon Silver and Bronze support up to 2 sockets.
- −M: 1536 GB RAM per socket instead of 768 GB RAM for non−M SKUs
- −F: integrated OmniPath fabric
- −T: High thermal-case and extended reliability

Support for up to 12 DIMMs of DDR4 memory per CPU socket.

Xeon Platinum, Gold 61XX, and Gold 5122 have two AVX-512 FMA units per core. Xeon Gold 51XX (except 5122), Silver, and Bronze have a single AVX-512 FMA unit per core.

Xeon Bronze and Silver (dual processor)

Xeon Bronze 31XX has no HT or Turbo Boost support.

Xeon Bronze 31XX supports DDR4-2133 MHz RAM. Xeon Silver 41XX supports DDR4-2400 MHz RAM.

Xeon Bronze 31XX and Xeon Silver 41XX support two UPI links at 9.6 GT/s.

Model number	sSpec number	Cores (Threads)	Frequency	Turbo Boost all-core/2.0 (/max. 3.0)	L2 cache	L3 cache	TDP	Socket	I/O bus	Memory	Release date	Part number(s)	Release price (USD)
Xeon Bronze 3104	SR3GM (U0)	6 (6)	1.7 GHz	N/A	6 × 1 MiB	8.25 MiB	85 W	LGA 3647	2 × 9.6 GT/s UPI	6 × DDR4-2133	11 July 2017	CD8067303562000 BX806733104	$223 $213
Xeon Bronze 3106	SR3GL (U0)	8 (8)	1.7 GHz	N/A	8 × 1 MiB	11.00 MiB	85 W	LGA 3647	2 × 9.6 GT/s UPI	6 × DDR4-2133	11 July 2017	CD8067303561900 BX806733106	$306 $316
Xeon Silver 4108	SR3GJ (U0)	8 (16)	1.8 GHz	2.1/3.0 GHz	8 × 1 MiB	11.00 MiB	85 W	LGA 3647	2 × 9.6 GT/s UPI	6 × DDR4-2400	11 July 2017	CD8067303561500 BX806734108	$417 $427
Xeon Silver 4109T	SR3GP (U0)	8 (16)	2 GHz	2.3/3.0 GHz	8 × 1 MiB	11.00 MiB	70 W	LGA 3647	2 × 9.6 GT/s UPI	6 × DDR4-2400	11 July 2017	CD8067303562200	$501
Xeon Silver 4110	SR3GH (U0)	8 (16)	2.1 GHz	2.4/3.0 GHz	8 × 1 MiB	11.00 MiB	85 W	LGA 3647	2 × 9.6 GT/s UPI	6 × DDR4-2400	11 July 2017	CD8067303561400 BX806734110	$501 $511
Xeon Silver 4112	SR3GN (U0)	4 (8)	2.6 GHz	2.9/3.0 GHz	4 × 1 MiB	8.25 MiB	85 W	LGA 3647	2 × 9.6 GT/s UPI	6 × DDR4-2400	11 July 2017	CD8067303562100 BX806734112	$473 $483
Xeon Silver 4114	SR3GK (U0)	10 (20)	2.2 GHz	2.5/3.0 GHz	10 × 1 MiB	13.75 MiB	85 W	LGA 3647	2 × 9.6 GT/s UPI	6 × DDR4-2400	11 July 2017	CD8067303561800 BX806734114	$694 $704
Xeon Silver 4114T	SR3MM (U0)	10 (20)	2.2 GHz	2.5/3.0 GHz	10 × 1 MiB	13.75 MiB	85 W	LGA 3647	2 × 9.6 GT/s UPI	6 × DDR4-2400	Q3 2017	CD8067303645300	$773
Xeon Silver 4116	SR3HQ (M0)	12 (24)	2.1 GHz	2.4/3.0 GHz	12 × 1 MiB	16.50 MiB	85 W	LGA 3647	2 × 9.6 GT/s UPI	6 × DDR4-2400	11 July 2017	CD8067303567200 BX806734116	$1002 $1012
Xeon Silver 4116T	SR3MQ (U0)	12 (24)	2.1 GHz	2.4/3.0 GHz	12 × 1 MiB	16.50 MiB	85 W	LGA 3647	2 × 9.6 GT/s UPI	6 × DDR4-2400	Q3 2017	CD8067303645400	$1112

Xeon Gold (quad processor)

Xeon Gold 51XX and F SKUs has two UPIs at 10.4 GT/s. Xeon Gold 61XX has three UPIs at 10.4 GT/s.

Xeon Gold 51XX support DDR4-2400 MHz RAM (except 5122). Xeon Gold 5122 and 61XX support DDR4-2666 MHz RAM.

Model number	sSpec number	Cores (Threads)	Frequency	Turbo Boost all-core/2.0 (/max. 3.0)	L2 cache	L3 cache	TDP	Socket	I/O bus	Memory	Release date	Part number(s)	Release price (USD)
Xeon Gold 5115	SR3GB (M0)	10 (20)	2.4 GHz	2.8/3.2GHz	10 × 1 MiB	13.75 MiB	85 W	LGA 3647	2 × 10.4 GT/s UPI	6 × DDR4-2400	11 July 2017	CD8067303535601	$1221
Xeon Gold 5117		14 (28)	2 GHz	2.3/2.8GHz	14 × 1 MiB	19.25 MiB	105 W	LGA 3647	2 × 10.4 GT/s UPI	6 × DDR4-2400	11 July 2017
Xeon Gold 5117F		14 (28)	2 GHz	2.3/2.8GHz	14 × 1 MiB	19.25 MiB	113 W	LGA 3647	2 × 10.4 GT/s UPI	6 × DDR4-2400	11 July 2017
Xeon Gold 5118	SR3GF (M0)	12 (24)	2.3 GHz	2.7/3.2GHz	12 × 1 MiB	16.50 MiB	105 W	LGA 3647	2 × 10.4 GT/s UPI	6 × DDR4-2400	11 July 2017	CD8067303536100	$1273
Xeon Gold 5119T	SR3MN (M0)	14 (28)	1.9 GHz	2.3/3.2GHz	14 × 1 MiB	19.25 MiB	85 W	LGA 3647	2 × 10.4 GT/s UPI	6 × DDR4-2400	11 July 2017	CD8067303567703	$1555
Xeon Gold 5120	SR3GD (M0)	14 (28)	2.2 GHz	2.6/3.2GHz	14 × 1 MiB	19.25 MiB	105 W	LGA 3647	2 × 10.4 GT/s UPI	6 × DDR4-2400	11 July 2017	CD8067303535900 BX806735120	$1555 $1561
Xeon Gold 5120T	SR3GC (M0)	14 (28)	2.2 GHz	2.6/3.2GHz	14 × 1 MiB	19.25 MiB	105 W	LGA 3647	2 × 10.4 GT/s UPI	6 × DDR4-2400	11 July 2017	CD8067303535700	$1727
Xeon Gold 5122	SR3AT (H0)	4 (8)	3.6 GHz	3.7/3.7GHz	4 × 1 MiB	16.50 MiB	105 W	LGA 3647	2 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303330702 BX806735122	$1221 $1227
Xeon Gold 6126	SR3B3 (H0)	12 (24)	2.6 GHz	3.3/3.7GHz	12 × 1 MiB	19.25 MiB	125 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303405900	$1776
Xeon Gold 6126F	SR3KE (H0)	12 (24)	2.6 GHz	3.3/3.7GHz	12 × 1 MiB	19.25 MiB	135 W	LGA 3647	2 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303593400	$1931
Xeon Gold 6126T	SR3J9 (H0)	12 (24)	2.6 GHz	3.3/3.7GHz	12 × 1 MiB	19.25 MiB	125 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303593100	$1865
Xeon Gold 6128	SR3J4 (H0)	6 (12)	3.4 GHz	3.7/3.7GHz	6 × 1 MiB	19.25 MiB	115 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303592600 BX806736128	$1691 $1697
Xeon Gold 6130	SR3B9 (H0)	16 (32)	2.1 GHz	2.8/3.7GHz	16 × 1 MiB	22.00 MiB	125 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303409000 BX806736130	$1900
Xeon Gold 6130F	SR3KD (H0)	16 (32)	2.1 GHz	2.8/3.7GHz	16 × 1 MiB	22.00 MiB	125 W	LGA 3647	2 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303593300	$2049
Xeon Gold 6130T	SR3J8 (H0)	16 (32)	2.1 GHz	2.8/3.7GHz	16 × 1 MiB	22.00 MiB	125 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303593000	$1988
Xeon Gold 6132	SR3J3 (H0)	14 (28)	2.6 GHz	3.3/3.7GHz	14 × 1 MiB	19.25 MiB	140 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303592500	$2111
Xeon Gold 6134	SR3AR (H0)	8 (16)	3.2 GHz	3.7/3.7GHz	8 × 1 MiB	24.75 MiB	130 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303330302 BX806736134	$2214 $2220
Xeon Gold 6134M	SR3AS (H0)	8 (16)	3.2 GHz	3.7/3.7GHz	8 × 1 MiB	24.75 MiB	130 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303330402	$5217
Xeon Gold 6136	SR3B2 (H0)	12 (24)	3 GHz	3.6/3.7GHz	12 × 1 MiB	24.75 MiB	150 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303405800	$2460
Xeon Gold 6138	SR3B5 (H0)	20 (40)	2 GHz	2.7/3.7GHz	20 × 1 MiB	27.50 MiB	125 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303406100 BX806736138	$2612 $2618
Xeon Gold 6138F	SR3KK (H0)	20 (40)	2 GHz	2.7/3.7GHz	20 × 1 MiB	27.50 MiB	135 W	LGA 3647	2 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303593900	$2767
Xeon Gold 6138T	SR3J7 (H0)	20 (40)	2 GHz	2.7/3.7GHz	20 × 1 MiB	27.50 MiB	125 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303592900	$2742
Xeon Gold 6140	SR3AX (H0)	18 (36)	2.3 GHz	3.0/3.7GHz	18 × 1 MiB	24.75 MiB	140 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303405200 BX806736140	$2445 $2451
Xeon Gold 6140M	SR3AZ (H0)	18 (36)	2.3 GHz	3.0/3.7GHz	18 × 1 MiB	24.75 MiB	140 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303405500	$5448
Xeon Gold 6142	SR3AY (H0)	16 (32)	2.6 GHz	3.3/3.7GHz	16 × 1 MiB	22.00 MiB	150 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303405400 BX806736142	$2946 $2952
Xeon Gold 6142F	SR3KH (H0)	16 (32)	2.6 GHz	3.3/3.7GHz	16 × 1 MiB	22.00 MiB	160 W	LGA 3647	2 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303593700	$3101
Xeon Gold 6142M	SR3B1 (H0)	16 (32)	2.6 GHz	3.3/3.7GHz	16 × 1 MiB	22.00 MiB	150 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303405700	$5949
Xeon Gold 6144	SR3MB (H0)	8 (16)	3.5 GHz	4.1/4.2GHz	8 × 1 MiB	24.75 MiB	150 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	Q3 2017	CD8067303657302	$2925
Xeon Gold 6145	SR3G4 (H0)	20 (40)	2 GHz	2.7/3.7GHz	20 × 1 MiB	27.50 MiB	145 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	2017	CD8067303528200
Xeon Gold 6146	SR3MA (H0)	12 (24)	3.2 GHz	3.9/4.2GHz	12 × 1 MiB	24.75 MiB	165 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303657201	$3286
Xeon Gold 6148	SR3B6 (H0)	20 (40)	2.4 GHz	3.1/3.7GHz	20 × 1 MiB	27.50 MiB	150 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303406200 BX806736148	$3072 $3078
Xeon Gold 6148F	SR3KJ (H0)	20 (40)	2.4 GHz	3.1/3.7GHz	20 × 1 MiB	27.50 MiB	150 W	LGA 3647	2 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303593800	$3227
Xeon Gold 6149		()	3.1 GHz		× 1 MiB	MiB		LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666			OEM
Xeon Gold 6150	SR37K (H0)	18 (36)	2.7 GHz	3.4/3.7GHz	18 × 1 MiB	24.75 MiB	165 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303328000	$3358
Xeon Gold 6152	SR3B4 (H0)	22 (44)	2.1 GHz	2.8/3.7GHz	22 × 1 MiB	30.25 MiB	140 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303406000 BX806736152	$3655 $3661
Xeon Gold 6154	SR3J5 (H0)	18 (36)	3 GHz	3.7/3.7GHz	18 × 1 MiB	24.75 MiB	200 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303592700	$3543
Xeon Gold 6161	SR3G7 (H0)	22 (44)	2.2 GHz	2.7/3.0GHz	22 × 1 MiB	30.25 MiB	165 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	2017	CD8067303532100

Xeon Platinum (octa processor)

Xeon Platinum non-F SKUs have three UPIs at 10.4 GT/s. Xeon Platinum F-SKUs have two UPIs at 10.4 GT/s.

Xeon Platinum supports DDR4-2666 MHz RAM.

Model number	sSpec number	Cores (Threads)	Frequency	Turbo Boost all-core/2.0 (/max. 3.0)	L2 cache	L3 cache	TDP	Socket	I/O bus	Memory	Release date	Part number(s)	Release price (USD)
Xeon Platinum 8153	SR3BA (H0)	16 (32)	2 GHz	2.3/2.8 GHz	16 × 1 MiB	22.00 MiB	125 W	LGA 3647	3 × 10.4 GT/s QPI	6 × DDR4-2666	11 July 2017	CD8067303408900	$3115
Xeon Platinum 8156	SR3AV (H0)	4 (8)	3.6 GHz	3.3/3.7 GHz	4 × 1 MiB	16.50 MiB	105 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303368800	$7007
Xeon Platinum 8158	SR3B7 (H0)	12 (24)	3 GHz	2.7/3.7 GHz	12 × 1 MiB	24.75 MiB	150 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303406500	$7007
Xeon Platinum 8160	SR3B0 (H0)	24 (48)	2.1 GHz	2.8/3.7 GHz	24 × 1 MiB	33.00 MiB	150 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303405600 BX806738160	$4702 $4708
Xeon Platinum 8160F	SR3B8 (H0)	24 (48)	2.1 GHz	2.8/3.7 GHz	24 × 1 MiB	33.00 MiB	160 W	LGA 3647	2 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303406600	$4856
Xeon Platinum 8160M	SR3B8 (H0)	24 (48)	2.1 GHz	2.8/3.7 GHz	24 × 1 MiB	33.00 MiB	150 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303406600	$7704
Xeon Platinum 8160T	SR3J6 (H0)	24 (48)	2.1 GHz	2.8/3.7 GHz	24 × 1 MiB	33.00 MiB	150 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303592800	$4936
Xeon Platinum 8163	SR3G1 (H0)	24 (48)	2.4 GHz	2.7/3.1 GHz	24 × 1 MiB	33.00 MiB	165 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	2017	CD8067303527200
Xeon Platinum 8164	SR3BB (H0)	26 (52)	2 GHz	2.7/3.7 GHz	26 × 1 MiB	35.75 MiB	150 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303408800 BX806738164	$6114 $6120
Xeon Platinum 8167M	SR3A0 (H0)	26 (52)	2 GHz	2.4/2.4 GHz	26 × 1 MiB	35.75 MiB	165 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	2017	CD8067303180701
Xeon Platinum 8168	SR37J (H0)	24 (48)	2.7 GHz	3.4/3.7 GHz	24 × 1 MiB	33.00 MiB	205 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303327701	$5890
Xeon Platinum 8170	SR37H (H0)	26 (52)	2.1 GHz	2.8/3.7 GHz	26 × 1 MiB	35.75 MiB	165 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303327601 BX806738170	$7405 $7411
Xeon Platinum 8170M	SR3BD (H0)	26 (52)	2.1 GHz	2.8/3.7 GHz	26 × 1 MiB	35.75 MiB	165 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303319201	$10,409
Xeon Platinum 8173M	SR37Q (H0)	28 (56)	2 GHz	2.7/3.5 GHz	28 × 1 MiB	38.50 MiB	165 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	2017	CD8067303172400
Xeon Platinum 8176	SR37A (H0)	28 (56)	2.1 GHz	2.8/3.8 GHz	28 × 1 MiB	38.50 MiB	165 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303314700	$8790
Xeon Platinum 8176F	SR3MK (H0)	28 (56)	2.1 GHz	2.8/3.8 GHz	28 × 1 MiB	38.50 MiB	173 W	LGA 3647	2 × 10.4 GT/s UPI	6 × DDR4-2666	Q3, 2017	CD8067303694600	$8874
Xeon Platinum 8176M	SR37U (H0)	28 (56)	2.1 GHz	2.8/3.8 GHz	28 × 1 MiB	38.50 MiB	165 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303133605	$11,722
Xeon Platinum 8180	SR377 (H0)	28 (56)	2.5 GHz	3.2/3.8 GHz	28 × 1 MiB	38.50 MiB	205 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303314400	$10,009
Xeon Platinum 8180M	SR37T (H0)	28 (56)	2.5 GHz	3.2/3.8 GHz	28 × 1 MiB	38.50 MiB	205 W	LGA 3647	3 × 10.4 GT/s UPI	6 × DDR4-2666	11 July 2017	CD8067303192101	$13,011

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^ ^a^b^c Pirzada, Syed Muhammad Usman (June 27, 2014). "Massive Intel 14nm Skylake Leak – Multiple eDRAM Configurations and Desktop Variant to have Configurable TDP". WCCFTech. WCCFTech Prvt. Ltd. Retrieved June 28, 2014.

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^ [1]^{[dead link]}

^ "Intel talks up new processor releases and celebrates an anniversary". Maximumpc.com. Retrieved April 16, 2016.

^ "6th Generation Intel® Core™ Processor Family Datasheet, Vol. 1". Intel. Retrieved August 22, 2015.

^ "Intel's Cannonlake 10nm Microarchitecture is Due For 2016 – Compatible On Union Bay With Union Point PCH". Wccftech.com. June 6, 2014. Retrieved June 15, 2014.

^ "Intel 14nm Skylake Desktop 'Sky Bay" Platform Detailed – TDPs For DT, H-Series, U-Series, Y-Series Unveiled, Quad Core With GT4e GPU Has 95W TDP". Wccftech.com. June 5, 2014. Retrieved June 9, 2014.

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^ Kirsch, Nathan. "Intel 2015 Platform Roadmap Shows Skylake CPUs, 100 Series Chipset and DDR4". Legit Reviews. Retrieved May 8, 2014.

^ Howse, Brett. "Examining Intel's New Speed Shift Tech on Skylake: More Responsive Processors". Anandtech.com. Retrieved April 16, 2016.

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^ Cutress, Ian. "The Intel 6th Gen Skylake Review: Core i7-6700K and i5-6600K Tested". Anandtech.com. Retrieved January 24, 2018.

^ http://halobates.de/blog/p/410

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External links

Ung, Gordon (August 18, 2015). "Intel Skylake CPU details revealed: These faster, more power-efficient chips can even drive three 4K monitors". PC world.

Shields, Anne (September 19, 2015). "Intel's Skylake a New Lifeline for the PC Market?". Yahoo Finance.

[launch-1] "Intel to Debut its Core "Skylake" Processors at Gamescom 2015". TechPowerUp..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}

[tomshardware_purley-2] Tom's Hardware: Skylake Xeon Platforms Spotted, Purley Makes A Quiet Splash At Computex. June 3, 2016

[bitsnchips-3] "AVX-512 SIMD enabled only on Xeon models of SkyLake". Bits and Chips.

[avx512-4] "Skylake processors for the PC will not support the AVX-512". Hardware-boom.com. Retrieved January 24, 2018.}

[i7-6700k-5] "Intel Core i7-6700K Processor (8M Cache, up to 4.20 GHz)". Ark.intel.com. Retrieved January 24, 2018.

[6] Cutress, Ian. "The Intel Skylake Mobile and Desktop Launch, with Architecture Analysis". Anandtech.com. Retrieved September 18, 2015.

[software.intel.com-7] "The Compute Architecture of Intel® Processor Graphics Gen9" (PDF). Software.intel.com. Retrieved January 24, 2018.

[8] "Intel® 64 and IA-32 Architectures Optimization Reference Manual" (PDF). Intel.com. Retrieved January 24, 2018.

[9] "Intel Unleashes Next-Gen Enthusiast Desktop PC Platform at Gamescom". Intel Newsroom. Retrieved August 5, 2015.

[codenames-10] Demerjian, Charlie. "After Intel's Haswell comes Broadwell". Semiaccurate.com. Retrieved January 4, 2012.

[11] "Intel Presentation: 22nm Details" (PDF). Retrieved January 4, 2012.

[techradar-12] Darren Allan (31 Aug 2016). "Intel's latest CPUs will only support Windows 10". Tech Radar. Retrieved 8 Jun 2017.

[theinquirer.net-13] "There's a patch to reinstate Windows 7 & 8.1 on Kaby Lake CPUs". Theinquirer.net. Retrieved January 24, 2018.}

[14] "6th Generation Intel® Core™ i7-6700K and i5-6600K Processors". Intel. Retrieved 2018-05-25.

[15] "6th Generation Intel® Processor Family". Intel. Retrieved 2018-05-25.

[16] "Why Intel calls Skylake a 6th-generation CPU". PCWorld. Retrieved 2018-05-25.

[17] "Intel in Israel: A Old Relationship Faces New Criticism". Knowledge.wharton.upenn.edu. Retrieved January 24, 2018.

[18] Intel Introduced its 6th Generation Intel Core Published September 2, 2015, techtime.co.il

[19] "AnandTech | Gallery - Intel Skylake YUHS Processor List - 11 Photos". www.anandtech.com. Retrieved 2018-12-19.

[20] "Intel's Skylake chips to power PCs as thin as tablets, with big battery boost". Cnet.com. September 2, 2015. Retrieved January 24, 2018.

[21] "Intel announces Skylake microarchitecture". Cpu-world.com. Retrieved January 24, 2018.}

[22] "Intel Corporation Launching Broadwell, Skylake Chips Back to Back". ValueWalk. Retrieved October 17, 2014.

[23] Ryan Smith. "AnandTech – Intel's 14nm Technology in Detail". Anandtech.com. Retrieved January 24, 2018.}

[24] "Intel Broadwell and Skylake client CPUs both launching in 2015". Hexus.net. Retrieved January 24, 2018.}

[extremetech1-25] "Intel's 14nm puzzle: As Skylake details leak, everybody asks – is the chip coming in 2015 or not?". ExtremeTech. July 14, 2014. Retrieved October 17, 2014.

[26] Piyush Arora (October 15, 2014). "Intel: Skylake Development Appears To Be On Schedule". Seekingalpha.com. Retrieved January 24, 2018.}

[pcgamer-nonk-27] "Intel puts a stop to overclocking on non-K Skylake CPUs". PC Gamer. Retrieved February 9, 2016.

[hexus-nonkkod-28] "Intel Skylake Non-K OC KOed by ASRock". Hexus.net. Retrieved February 9, 2016.

[anand-bclk-29] "BCLK Overclocking Intel's non-K Skylake Processors: Coming Soon". Anandtech.com. Retrieved February 9, 2016.

[30] "It's official: Intel shuts down the cheap overclocking party by closing Skylake loophole". PCWorld. Retrieved February 9, 2016.

[pcworld-yesyoucan-31] "Yes, you can overclock cheap Intel Skylake chips". PC World. Retrieved February 9, 2016.

[32] "New ASRock motherboards sport external clock generators for Intel CPU overclocking". ExtremeTech. Retrieved April 10, 2016.

[33] 株式会社インプレス. "独自OC機能を備えたH170マザーがASRockから登場、計2モデル - AKIBA PC Hotline!". AKIBA PC Hotline! (in Japanese). Retrieved April 10, 2016.

[ars-skylake18months-34] "Skylake users given 18 months to upgrade to Windows 10". Ars Technica. Retrieved January 16, 2016.

[zdnet-newsupportpolicy-35] Bott, Ed. "Microsoft updates support policy: New CPUs will require Windows 10". ZDNet.com. CBS Interactive. Retrieved January 16, 2016.

[ars-oemskylake-36] "Skylake support on Windows 7 and 8.1 given a one-year extension". Ars Technica. Retrieved March 18, 2016.

[cw-skylakechange-37] "Microsoft backtracks on Windows 7 support deadline". Computerworld.com. Retrieved March 18, 2016.

[38] Larsen, Shad (2016-08-11). "Updates to Silicon Support Policy for Windows". Windows business blog. Microsoft. Retrieved 9 May 2017.

[39] Jo Foley, Mary (2016-08-11). "Microsoft extends again support for Windows 7, 8.1 Skylake-based devices". ZDNet. CBS Interactive. Retrieved 9 May 2017.

[40] "Saving laptop power with powertop". Fedora Magazine. February 17, 2017. Retrieved January 24, 2018.}

[41] "Linux 4.11 To Enable Frame-Buffer Compression By Default For Skylake+ - Phoronix". Phoronix.com.

[42] "OpenBSD 6.2". Retrieved 10 October 2018.

[43] "Intel Skylake-S desktop CPUs expected at IDF 2015 in August". February 17, 2015.

[wccftech-06-27-44] Pirzada, Syed Muhammad Usman (June 27, 2014). "Massive Intel 14nm Skylake Leak – Multiple eDRAM Configurations and Desktop Variant to have Configurable TDP". WCCFTech. WCCFTech Prvt. Ltd. Retrieved June 28, 2014.

[45] "Intel Core "Skylake" CPUs Accompanied by 100-series Chipset". Techpowerup.com. Retrieved May 8, 2014.

[46] Pirzada, Syed Muhammad Usman (June 5, 2014). "Intel to Abandon the Internal Voltage Regulator (IVR) with Skylake Microarchitecture". WCCFTech. WCCFTech Prvt. Ltd. Retrieved June 28, 2014.

[47] "How Intel Plans to Transition Between DDR3 and DDR4 for the Mainstream". techpowerup.com. September 14, 2014. Retrieved November 19, 2014.

[48] "Intel's 6th Generation Skylake Processors Scheduled For 2H 2015 – 5th Generation Broadwell in Spring '15, Updates 2015–2016 Mobility Roadmap". WCCFtech.

[49] "ARK | Intel® Core™ i7-6700K Processor (8M Cache, up to 4.20 GHz)". Ark.intel.com. Retrieved August 6, 2015.

[50] "[Phoronix] Intel Publishes Initial Skylake Linux Graphics Support". Phoronix.com. Retrieved January 24, 2018.}

[51] Cutress, Ian. "Intel Skylake Z170 Motherboards: A Quick Look at 55+ New Products". Anandtech.com. Retrieved August 6, 2015.

[52] "Wire-free PCs, tablets and phones coming in 2015 says Intel". ZDNet. September 10, 2014.

[53] "DRIVER VERSION: 25.20.100.6471" (PDF). Downloadmirror.intel.com. Retrieved December 20, 2018.

[54] "Mesa 13.0 Released With Intel OpenGL 4.5, RADV Radeon Vulkan Driver". Phoronix.com.

[55] "Intel Skylake-S CPUs and 100-series Chipsets Detailed in Apparent Leak". NDTV Gadgets. April 17, 2015.

[56] "Skylake's graphics architecture: Intel is still gunning for dedicated GPUs -- IDF15". Retrieved August 18, 2015.

[57] "Intel Unleashes Next-Gen Enthusiast Desktop PC Platform at Gamescom – Technology@Intel". Technology@Intel. Retrieved August 10, 2015.

[58] "[Updated] Critical Flaw In Intel Skylake And Kaby Lake HyperThreading Discovered Requiring BIOS Microcode Fix - HotHardware". Hothardware.com. Retrieved January 24, 2018.

[59] "Re: [RFC 09/10] x86/enter: Create macros to restrict/unrestrict Indirect Branch Speculation [LWN.net]". Lwn.net. Retrieved January 24, 2018.

[60] ttps://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-optimization-manual.pdf

[61] ttps://aloiskraus.wordpress.com/2018/06/16/why-skylakex-cpus-are-sometimes-50-slower-how-intel-has-broken-existing-code/

[62] [1]^{[dead link]}

[63] "Intel talks up new processor releases and celebrates an anniversary". Maximumpc.com. Retrieved April 16, 2016.

[:0-64] "6th Generation Intel® Core™ Processor Family Datasheet, Vol. 1". Intel. Retrieved August 22, 2015.

[65] "Intel's Cannonlake 10nm Microarchitecture is Due For 2016 – Compatible On Union Bay With Union Point PCH". Wccftech.com. June 6, 2014. Retrieved June 15, 2014.

[66] "Intel 14nm Skylake Desktop 'Sky Bay" Platform Detailed – TDPs For DT, H-Series, U-Series, Y-Series Unveiled, Quad Core With GT4e GPU Has 95W TDP". Wccftech.com. June 5, 2014. Retrieved June 9, 2014.

[wccftech-06-04-67] "Intel Skylake Processors To Launch in 2H 2015 – Compatible With LGA 1151 Socket and Z170 Chipset, Will Feature DDR3 / DDR4 Memory Support". Wccftech.com. June 4, 2014. Retrieved June 9, 2014.

[68] Shilov, Anton (April 4, 2012). "Intel to Start DDR4 Usage with Server Platforms in 2014". X-bit laboratories. Archived from the original on October 12, 2013. Retrieved October 5, 2013.

[69] "Intel Skylake Could Feature Dual DDR3/DDR4 Memory Support with Double IMCs". Techpowerup.com. September 14, 2014. Retrieved November 20, 2014.

[70] "GIGABYTE – Motherboard – Socket 1151 – GA-Z170-HD3 DDR3 (rev. 1.0)". Retrieved September 7, 2015.

[71] "Skylake's IMC Supports Only DDR3L". Retrieved September 29, 2015.

[72] Kirsch, Nathan. "Intel 2015 Platform Roadmap Shows Skylake CPUs, 100 Series Chipset and DDR4". Legit Reviews. Retrieved May 8, 2014.

[73] Howse, Brett. "Examining Intel's New Speed Shift Tech on Skylake: More Responsive Processors". Anandtech.com. Retrieved April 16, 2016.

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