Coffee Lake

Coffee Lake

CPUID code	0906eah, 0906ebh
Product code	80684
L1 cache	64 kiB per core
L2 cache	256 kiB per core
L3 cache	Up to 2 MiB per core
Created	October 5, 2017
Transistors	14 nm (Tri-Gate) transistors
Architecture	x86-64
Instructions	x86-64
Extensions	MMX, AES-NI, CLMUL, FMA3 SSE, SSE2, SSE3, SSSE3, SSE4, SSE4.1, SSE4.2 AVX, AVX2, TXT, TSX, SGX VT-x, VT-d
Socket	LGA 1151 with altered pinout to support more than four cores
Predecessor	Kaby Lake (Optimization)
Successor	Whiskey Lake (3rd Optimization) Mobile: Cannon Lake (Process) Ice Lake (Architecture)
GPU	GT2, GT3e
Brand name(s)	Celeron Pentium Gold Core i3 Core i5 Core i7 Core i9 Xeon E

Coffee Lake is Intel's codename for the second 14 nm process refinement following Broadwell, Skylake, and Kaby Lake. The integrated graphics on Coffee Lake chips allow support for DP 1.2 to HDMI 2.0 and HDCP 2.2 connectivity. Coffee Lake natively supports DDR4-2666 MHz memory in dual channel mode when used with Xeon, Core i5 and i7 CPUs, DDR4-2400 MHz memory in dual channel mode when used with Celeron, Pentium, and Core i3 CPUs, and LPDDR3-2133 MHz memory when used with mobile CPUs.

Desktop Coffee Lake CPUs introduce a major change in Intel's Core CPUs nomenclature, in that i5 and i7 CPUs feature six cores (along with hyper-threading in the case of the latter). Core i3 CPUs, having four cores and dropping hyper-threading for the first time, received a change as well.

The chips were released on October 5, 2017. Coffee Lake is used in conjunction with the 300-series chipset, and officially does not work with the 100- and 200-series chipset motherboards. Although desktop Coffee Lake processors use the same physical LGA 1151 socket as Skylake and Kaby Lake, the pinout is electrically incompatible with these older processors and motherboards.

On April 2, 2018 Intel released additional desktop Core i3, i5, i7, Pentium Gold, Celeron CPUs and for the first time in its history six core Core i7 and i9 mobile CPUs as well as hyper-threaded four core Core i5 mobile CPUs, and the first Coffee Lake ultra-power CPUs with Intel Iris Plus graphics.

Features

Coffee Lake CPUs are built using the second refinement of Intel's 14 nm process (14++). It features increased transistor gate pitch for a lower current density and higher leakage transistors which allows higher peak power and higher frequency at the expense of die area and idle power.

Coffee Lake marks a shift in the number of cores for Intel's mainstream desktop processors, the first such update for the previous ten-year history of Intel Core CPUs. Mainstream desktop i7 CPUs feature six cores and 12 threads, i5 CPUs feature six single-threaded cores and i3 CPUs feature four single-threaded cores.

Chipsets

The 300 series chipsets, while using physically identical LGA 1151 socket to the 100 and 200 series chipsets, are officially only compatible with Coffee Lake CPUs, meaning that older motherboards do not officially support Coffee Lake processors, and 300 series motherboards do not officially support Skylake or Kaby Lake processors.

The enthusiast Z370, launched alongside the first Coffee Lake CPUs in October of 2017, was the only officially supported chipset for these mainstream CPUs. When the full lineup of CPUs was revealed in April of 2018, it was then accompanied by lower-end chipsets for home and business users.

Architecture changes compared to Kaby Lake

Coffee Lake features largely the same CPU core and performance per MHz as Skylake/Kaby Lake. Features specific to Coffee Lake include:

• Increased core count to six cores on Core i5 and i7 parts; Core i3 is now a quad-core brand
• Increased L3 cache in accordance to the number of threads
• Increased turbo clock speeds across i5 and i7 CPUs models (increased by up to 400 MHz)
• Increased iGPU clock speeds by 50 MHz and rebranded it UHD (Ultra High Definition)
• DDR4 memory support updated for 2666 MHz (for i5 and i7 parts) and 2400 MHz (for i3 parts); DDR3 memory is no longer supported on LGA1151 parts
• 300 series chipset on the second revision of socket LGA 1151

Kaby Lake Refresh vs. Coffee Lake

Main article: Kaby Lake § List of Kaby Lake R processors

On August 8, 2017, Intel announced that new eighth generation of processors would be revealed the following August 21. As Intel's previous changes in product generations coincided with new microarchitectures, it was unclear but generally expected that the eighth Core generation products would be based on the new Coffee Lake microarchitecture. However, when it was officially announced on August 21, 2017, Intel stated that the eighth generation would be based on multiple microarchitectures, including Kaby Lake, Coffee Lake, and Cannonlake.

Additional core resources in mid-range eighth-generation Coffee Lake desktop chips offer significant gains in performance versus previous seventh-generation Intel CPUs in multi-threaded workloads. However, the architecture delivers no IPC difference over Skylake or Kaby Lake.

List of Coffee Lake processors

Desktop processors

Mainstream Desktop, Workstation and basic Server Coffee Lake CPUs are intended to run with LGA 1151 socket motherboards, but they are officially only compatible with 300-series chipsets.

Processor branding	Model	Cores (Threads)	Base CPU clock rate	Turbo clock rate [GHz]						GPU	max GPU clock rate	L3 cache	TDP	Memory support	Price (USD)
				Number of cores used
				1	2	3	4	5	6
Core i7	8086K	6 (12)	4.0 GHz	5.0	4.6	4.5	4.4		4.3	UHD 630	1.20 GHz	12 MB	95 W	DDR4 2666	$425
	8700K		3.7 GHz	4.7											$359
	8700		3.2 GHz	4.6	4.5	4.4	4.3						65 W		$303
	8700T		2.4 GHz	4.0	4.0	3.9		3.8					35 W
Core i5	8600K	6 (6)	3.6 GHz	4.3	4.2			4.1			1.15 GHz	9 MB	95 W		$257
	8600		3.1 GHz										65 W		$213
	8600T		2.3 GHz	3.7	3.6			3.5					35 W
	8500		3.0 GHz	4.1	4.0			3.9			1.10 GHz		65 W		$192
	8500T		2.1 GHz	3.5	3.4	3.3		3.2					35 W
	8400		2.8 GHz	4.0	3.9			3.8			1.05 GHz		65 W		$182
	8400T		1.7 GHz	3.3	3.2	3.1		3.0					35 W
Core i3	8350K	4 (4)	4.0 GHz	N/A							1.15 GHz	8 MB	91 W	DDR4 2400	$168
	8300		3.7 GHz										62 W		$138
	8300T		3.2 GHz										35 W
	8100		3.6 GHz								1.10 GHz	6 MB	65 W		$117
	8100T		3.1 GHz										35 W
Pentium Gold	G5600	2 (4)	3.9 GHz									4 MB	54 W		$86
	G5500		3.8 GHz												$75
	G5500T		3.2 GHz										35 W
	G5400		3.7 GHz							UHD 610	1.05 GHz		54 W		$64
	G5400T		3.1 GHz										35 W
Celeron	G4920	2 (2)	3.2 GHz									2 MB	54W		$52
	G4900		3.1 GHz												$42
	G4900T		2.9 GHz										35 W

Workstation processors

Processor branding	Model	Cores (Threads)	Base CPU clock rate	Turbo clock rate [GHz]						GPU	max GPU clock rate	L3 cache	TDP	Memory support	Price (USD)
				Number of cores used
				1	2	3	4	5	6
Xeon E	2186G	6 (12)	3.8 GHz	4.7	?	?	?	?	?	UHD P630	1.20 GHz	12 MB	95 W	DDR4 2666 ECC memory supported	$450
	2176G		3.7 GHz		?	?	?	?	?				80 W		$362
	2146G		3.5 GHz	4.5	?	?	?	?	?		1.15 GHz				$311
	2136		3.3 GHz		?	?	?	?	?	N/A					$284
	2126G	6 (6)			?	?	?	?	?	UHD P630	1.15 GHz				$255
	2174G	4 (8)	3.8 GHz	4.7	?	?	?	N/A			1.20 GHz	8 MB	71 W		$328
	2144G		3.6 GHz	4.5	?	?	?				1.15 GHz				$272
	2134		3.5 GHz		?	?	?			N/A					$250
	2124G	4 (4)	3.4 GHz		?	?	?			UHD P630	1.15 GHz				$213
	2124		3.3 GHz	4.3	?	?	?			N/A					$193

Mobile processors

Processor branding	Model	Cores (threads)	CPU clock rate	Max. Turbo clock rate	GPU	GPU clock rate		L3 cache	L4 cache (eDRAM)	TDP	cTDP	Price (USD)
						Base	Max.				Down
Xeon E	2186M	6 (12)	2.9 GHz	4.8 GHz	UHD P630	350 MHz	1.20 GHz	12 MB	N/A	45 W	35 W	$623
	2176M		2.7 GHz	4.4 GHz								$450
Core i9	8950HK		2.9 GHz	4.8 GHz	UHD 630	350 MHz					N/A	$583
Core i7	8850H		2.6 GHz	4.3 GHz			1.15 GHz	9 MB			35 W	$395
	8750H		2.2 GHz	4.1 GHz			1.10 GHz
	8700B		3.2 GHz	4.6 GHz			1.20 GHz	12 MB		65 W	N/A	$303
	8559U	4 (8)	2.7 GHz	4.5 GHz	Iris Plus 655	300 MHz		8 MB	128 MB	28 W	20 W	$431
Core i5	8500B	6 (6)	3.0 GHz	4.1 GHz	UHD 630	350 MHz	1.10 GHz	9 MB	N/A	65 W	N/A	$192
	8400B		2.8 GHz	4.0 GHz			1.05 GHz					$182
	8400H	4 (8)	2.5 GHz	4.2 GHz			1.10 GHz	8 MB		45 W	35 W	N/A
	8300H		2.3 GHz	4.0 GHz			1.00 GHz					$250
	8269U		2.6 GHz	4.2 GHz	Iris Plus 655	300 MHz	1.10 GHz	6 MB	128 MB	28 W	20 W	$320
	8259U		2.3 GHz	3.8 GHz			1.05 GHz					N/A
Core i3	8109U	2 (4)	3.0 GHz	3.6 GHz				4 MB				N/A
	8100H	4 (4)	3.0 GHz	N/A	UHD 630	350 MHz	1.00 GHz	6 MB	N/A	45 W	35 W	$225

See also

• List of Intel CPU microarchitectures