Coffee Lake

Coffee Lake
	Intel Core i7-8700K with six physical cores
General Info
Launched	October 5, 2017[1]
Discontinued	June 4, 2021 (8th gen, except for Xeons)[2][3]
CPUID code	0906eah, 0906ebh
Product code	80684
Cache
L1 cache	64 KiB per core
L2 cache	256 KiB per core
L3 cache	Up to 16 MiB, shared
Architecture and classification
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;
Physical specifications
Transistors	14 nm (Tri-Gate) transistors;
Cores	2–8;
GPU(s)	GT2, GT3e
Socket(s)	LGA 1151 with altered pinout to support more than four cores;
Products, models, variants
Brand name(s)	Celeron; Pentium Gold; Core i3; Core i5; Core i7; Core i9; Xeon E; ;
History
Predecessor	Kaby Lake (Optimization)
Successor	Same generation Cannon Lake (10nm, new process); Whiskey Lake (14nm, 3rd optimization); Next generation Ice Lake (10nm, new architecture); Comet Lake (14nm, 4th optimization);

Coffee Lake is Intel's codename for the second 14 nm process node refinement following Broadwell, Skylake, and Kaby Lake.[4] 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, i7 and i9 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 major changes 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 9th generation desktop CPU release in October 2018 further changed the nomenclature, with Core i7 moving to 8 cores and dropping hyper-threading for the first time, and new mainstream desktop Core i9 processors being released, featuring 8 cores with hyper-threading.

The 8th gen chips were released on October 5, 2017.[1] 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.[5]

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

On June 8, 2018, to commemorate the 40th anniversary of the Intel 8086 CPU architecture, Intel released the i7-8086K as a limited edition CPU, a renumbered and slightly higher clocked batch of the i7-8700K dies.

On October 8, 2018, Intel launched 9th generation Coffee Lake Refresh CPUs with up to eight cores.[6] To avoid running into thermal problems at high clock speeds, Intel soldered the integrated heat spreader (IHS) to the CPU die instead of using thermal paste as on the Coffee Lake processors.[7]

History

Its development was led by Intel Israel's processor design team in Haifa, Israel, as an optimization of Kaby Lake.[8] Intel first launched its 8th Generation Intel Core family processors in August 2017. While with the release of the new 8th Gen Intel Core i9 processor in 2018, Intel said it would be the highest-performance laptop processor Intel has ever built.[8]

Features

Coffee Lake CPUs are built using the second refinement of Intel's 14 nm process (14 nm++).[4] It features increased transistor gate pitch for a lower current density and higher leakage transistors that 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. In the 8th generation, 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.

9th generation

For the 9th generation, the Intel Core i9 branding made its debut on the mainstream desktop, describing CPUs with 8 cores and 16 threads. 9th generation i7s feature 8 single-threaded cores, marking the first time desktop Core i7s have not featured Intel's Hyper-threading technology, although the 9th generation Core i7 mobile CPUs do support hyperthreading and have 6 cores just like 8th gen mobile chips. 9th generation i5 CPUs feature six single-threaded cores, just like their 8th generation predecessors.

The ninth generation Core i series includes hardware fixes for Meltdown V3 and L1 Terminal Fault.[9]

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,[10][5] and 300 series motherboards do not officially support Skylake or Kaby Lake processors.

The enthusiast Z370 (a rebranded Z270), launched alongside the first Coffee Lake CPUs in October 2017, was the only officially supported chipset for these mainstream CPUs. When the full lineup of CPUs was revealed in April 2018, it was then accompanied by the lower-end H310, B360, H370 and Q370 chipsets for home and business users. The Z390 chipset was launched alongside the release of the 9th generation CPUs, supporting all 8th and 9th generation mainstream desktop parts. A B365 chipset was added later on.

9th generation XEONs need motherboards with chipset C246.[11]

Architecture changes compared to Kaby Lake

Coffee Lake features largely the same CPU core and performance per MHz as Skylake/Kaby Lake.[12][13] Features specific to Coffee Lake include:

Increased core count to six cores on Core i5 and 8th generation i7 parts; Core i3 is now a quad-core brand. 9th generation i7 and i9 parts feature eight cores.
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, i7 and i9 parts) and 2400 MHz (for i3 parts); DDR3 memory is no longer supported on LGA1151 parts, unless using with H310C chipset
300 series chipset on the second revision of socket LGA 1151
Support for CNVi

Kaby Lake Refresh vs. Coffee Lake

On August 8, 2017, Intel announced that new eighth generation of processors would be revealed the following August 21.[14] As Intel's previous changes in product generations coincided with new microarchitectures, it was unclear[15] but generally expected that the eighth Core generation products would be based on the new Coffee Lake microarchitecture.[16] When it was officially announced on August 21, 2017, however, Intel stated that the eighth generation would be based on multiple microarchitectures, including Kaby Lake,[17] Coffee Lake, and Cannon Lake.[18]

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. The architecture delivers no IPC difference over Skylake or Kaby Lake, however.[19]

List of 8th generation Coffee Lake processors

Desktop processors (Coffee Lake S)

These processors mark the first time that Intel has released mainstream consumer CPUs that support up to 128GB RAM.[20]

Processor branding	Model	Cores (Threads)	Base CPU clock rate	Turbo clock rate[21] [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 MiB	95 W *	Up to 128 GiB DDR4-2666	$425
	8700K		3.7 GHz	4.7	4.6	4.5	4.4		4.3				95 W *		$359
	8700		3.2 GHz	4.6	4.5	4.4	4.3						65 W		$303
	8700T		2.4 GHz	4.0	4.0[22]	3.9		3.8					35 W		$303
Core i5	8600K	6 (6)	3.6 GHz	4.3	4.2			4.1			1.15 GHz	9 MiB	95 W		$257
	8600		3.1 GHz	4.3	4.2			4.1					65 W		$213
	8600T		2.3 GHz	3.7	3.6			3.5					35 W		$213
	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			1.10 GHz		35 W		$192
	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			1.05 GHz		35 W		$182
Core i3	8350K	4 (4)	4.0 GHz	N/A							1.15 GHz	8 MiB	91 W	Up to 64 GiB DDR4-2400	$168
	8300		3.7 GHz										62 W		$138
	8300T		3.2 GHz										35 W		$138
	8100		3.6 GHz								1.10 GHz	6 MiB	65 W		$117
	8100F		3.6 GHz							N/A	N/A		65 W		$117
	8100T		3.1 GHz							UHD 630	1.10 GHz		35 W		$117
Pentium Gold	G5600	2 (4)	3.9 GHz									4 MiB	54 W		$86
	G5500		3.8 GHz										54 W		$75
	G5500T		3.2 GHz										35 W		$75
	G5400		3.7 GHz							UHD 610	1.05 GHz		54 W		$64
	G5400T		3.1 GHz										35 W		$64
Celeron	G4930	2 (2)	3.2 GHz									2 MiB	54W		$42
	G4920		3.2 GHz												$52
	G4900		3.1 GHz												$42
	G4900T		2.9 GHz										35 W		$42

* various reviews show that the Core i7-8700K CPU may consume over 110W under load.[23]

Workstation processors (Coffee Lake S)

Processor branding	Model	Cores (Threads)	Base CPU clock rate	Max. Turbo clock rate	GPU	max GPU clock rate	L3 cache	TDP	Memory support	Price (USD)
Xeon E	2186G	6 (12)	3.8 GHz	4.7 GHz	UHD P630	1.20 GHz	12 MiB	95 W	Up to 128 GiB DDR4-2666 ECC memory supported	$450
	2176G		3.7 GHz	4.7 GHz		1.20 GHz		80 W		$362
	2146G		3.5 GHz	4.5 GHz		1.15 GHz				$311
	2136		3.3 GHz		N/A					$284
	2126G	6 (6)	3.3 GHz		UHD P630	1.15 GHz				$255
	2174G	4 (8)	3.8 GHz	4.7 GHz		1.20 GHz	8 MiB	71 W		$328
	2144G		3.6 GHz	4.5 GHz		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 GHz	N/A					$193
	2104G		3.2 GHz	N/A	UHD P630	1.10 GHz		65 W		$193

Mobile processors (Coffee Lake H & Coffee Lake U)

Processor branding	Model	Cores (threads)	Base CPU clock rate	Max. Turbo clock rate	GPU	GPU clock rate		L3 cache	L4 cache (eDRAM)	TDP	cTDP	Price (USD)
Processor branding	Model	Cores (threads)	Base CPU clock rate	Max. Turbo clock rate	GPU	Base	Max.	L3 cache	L4 cache (eDRAM)	TDP	Down	Price (USD)
Xeon E	2186M	6 (12)	2.9 GHz	4.8 GHz	UHD P630	350 MHz	1.20 GHz	12 MiB	N/A	45 W	35 W	$623
Xeon E	2176M		2.7 GHz	4.4 GHz	UHD P630	350 MHz					35 W	$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 MiB			35 W	$395
	8750H		2.2 GHz	4.1 GHz			1.10 GHz	9 MiB			35 W	$395
	8700B		3.2 GHz	4.6 GHz			1.20 GHz	12 MiB		65 W	N/A	$303
	8569U	4 (8)	2.8 GHz	4.7 GHz	Iris Plus 655	300 MHz		8 MiB	128 MiB	28 W	N/A	$431
	8559U		2.7 GHz	4.5 GHz	Iris Plus 655					28 W	20 W	$431
	8557U		1.7 GHz	4.5 GHz	Iris Plus 645		1.15 GHz			15 W	N/A	OEM
Core i5	8500B	6 (6)	3.0 GHz	4.1 GHz	UHD 630	350 MHz	1.10 GHz	9 MiB	N/A	65 W	N/A	$192
	8400B	6 (6)	2.8 GHz	4.0 GHz			1.05 GHz	9 MiB		65 W	N/A	$182
	8400H	4 (8)	2.5 GHz	4.2 GHz			1.10 GHz	8 MiB		45 W	35 W	$250
	8300H		2.3 GHz	4.0 GHz			1.00 GHz	8 MiB		45 W	35 W	$250
	8279U		2.4 GHz	4.1 GHz	Iris Plus 655	300 MHz	1.15 GHz	6 MiB	128 MiB	28 W	N/A	$320
	8269U		2.6 GHz	4.2 GHz			1.10 GHz				20 W
	8259U		2.3 GHz	3.8 GHz			1.05 GHz				20 W
	8257U		1.4 GHz	3.9 GHz	Iris Plus 645					15 W	N/A	OEM
Core i3	8100B	4 (4)	3.6 GHz	N/A	UHD 630	350 MHz			N/A	65 W	N/A	$133
	8100H	4 (4)	3.0 GHz	N/A	UHD 630	350 MHz	1.00 GHz		N/A	45 W	35 W	$225
	8109U	2 (4)	3.0 GHz	3.6 GHz	Iris Plus 655	300 MHz	1.05 GHz	4 MiB	128 MiB	28 W	20 W	$304

List of 9th generation Coffee Lake processors (Coffee Lake Refresh)

Desktop processors

The first 9th generation Coffee Lake CPUs were released in the fourth quarter of 2018. They include hardware mitigations against certain Meltdown/Spectre vulnerabilities.[24][25]

Main differences from 8th generation (besides increased frequency):

Core i7 parts contain 8/8 cores/threads compared to 6/12 in 8th generation Core i7 parts
Core i3 parts are equipped with Turbo Boost technology

Even though the F suffix CPUs lack an integrated GPU, Intel set the same price for these CPUs as their featureful counterparts.[26] Intel would eventually reduce the official pricing of those CPUs in October 2019.[27]

The Intel Core i9-9900KS CPU, released at the end of October, 2019, features a limited one year warranty both for box and tray versions due to "its limited volume".[28]

Processor branding	Model	Cores (Threads)	Base CPU clock rate	Turbo clock rate[29] [GHz]								GPU	max GPU clock rate	Smart cache	TDP	Memory support	Release price
				Number of cores used
				1	2	3	4	5	6	7	8
Core i9	9900KS	8 (16)	4.0 GHz	5.0								UHD 630	1.20 GHz	16 MiB	127 W	DDR4-2666 2-channel up to 128 GiB	$513
	9900K		3.6 GHz	5.0		4.8		4.7				UHD 630	1.20 GHz		95* W		$488
	9900KF		3.6 GHz			4.8		4.7				N/A			95* W		$488
	9900		3.1 GHz									UHD 630	1.20 GHz		65 W		$423
	9900T		2.1 GHz	4.4											35 W		$423
Core i7	9700K	8 (8)	3.6 GHz	4.9	4.8	4.7		4.6						12 MiB	95 W		$374
	9700KF		3.6 GHz	4.9	4.8	4.7		4.6				N/A			95 W		$374
	9700		3.0 GHz	4.7								UHD 630	1.20 GHz		65 W		$323
	9700F		3.0 GHz	4.7								N/A			65 W
	9700T		2.0 GHz	4.3								UHD 630	1.20 GHz		35 W
Core i5	9600K	6 (6)	3.7 GHz	4.6	4.5	4.4		4.3		N/A		UHD 630	1.15 GHz	9 MiB	95 W		$262
	9600KF		3.7 GHz		4.5	4.4		4.3				N/A			95 W		$262
	9600		3.1 GHz									UHD 630	1.15 GHz		65 W		$213
	9600T		2.3 GHz	3.9									1.15 GHz		35 W		$213
	9500		3.0 GHz	4.4									1.10 GHz		65 W		$192
	9500F		3.0 GHz	4.4								N/A			65 W
	9500T		2.2 GHz	3.7								UHD 630	1.10 GHz		35 W
	9400		2.9 GHz	4.1	4.0			3.9				UHD 630	1.05 GHz		65 W		$182
	9400F		2.9 GHz	4.1	4.0			3.9				N/A			65 W
	9400T		1.8 GHz	3.4								UHD 630	1.05 GHz		35 W
Core i3	9350KF	4 (4)	4.0 GHz	4.6				N/A				N/A		8 MiB	91 W	DDR4-2400 2-channel up to 64 GiB	$173
	9320		3.7 GHz	4.4								UHD 630	1.15 GHz		62 W		$154
	9300		3.7 GHz	4.3									1.15 GHz		62 W		$143
	9300T		3.2 GHz	3.8									1.10 GHz		35 W		$143
	9100		3.6 GHz	4.2	4.1	4.0							1.10 GHz	6 MiB	65 W		$122
	9100F		3.6 GHz	4.2	4.1	4.0						N/A			65 W
	9100T		3.1 GHz	3.7								UHD 630	1.10 GHz		35 W
Pentium Gold	G5620	2 (4)	4.0 GHz	N/A									1.10 GHz	4 MiB	54 W		$86
	G5600T		3.3 GHz										1.05 GHz		35 W		$75
	G5420		3.8 GHz									UHD 610			54 W		$64
	G5420T		3.2 GHz												35 W		$64
Celeron	G4950	2 (2)	3.3 GHz											2 MiB	54 W		$52
	G4930		3.2 GHz												54 W		$42
	G4930T		3.0 GHz										1.00 GHz		35 W		$42

* various reviews show that the Core i9-9900K CPU may consume over 140W under load.[30][31][32][33]

Workstation processors

Coffee Lake-W CPUs require C242 or C246 chipset

Processor branding	Model	Cores (Threads)	Base clock rate	Max. Turbo clock rate	GPU	Smart cache	TDP	Memory support	Price (USD)
Xeon E	2288G	8 (16)	3.7 GHz	5.0 GHz	UHD P630	16 MiB	95 W	DDR4-2666 2-channel up to 128 GiB with ECC	$539
	2278G	8 (16)	3.4 GHz	5.0 GHz		16 MiB	80 W		$494
	2286G	6 (12)	4.0 GHz	4.9 GHz		12 MiB	95 W		$450
	2276G		3.8 GHz	4.9 GHz			80 W		$362
	2246G		3.6 GHz	4.8 GHz					$311
	2236		3.4 GHz	4.8 GHz	N/A				$284
	2226G	6 (6)	3.4 GHz	4.7 GHz	UHD P630				$255
	2274G	4 (8)	4.0 GHz	4.9 GHz		8 MiB	83 W		$328
	2244G		3.8 GHz	4.8 GHz			71 W		$272
	2234		3.6 GHz	4.8 GHz	N/A				$250
	2224G	4 (4)	3.5 GHz	4.7 GHz	UHD P630				$213
	2224	4 (4)	3.4 GHz	4.6 GHz	N/A				$193

Mobile processors

Processor branding	Model	Cores (threads)	Base CPU clock rate	Max. Turbo clock rate	GPU	GPU clock rate		L3 cache	TDP	cTDP	Price (USD)
Processor branding	Model	Cores (threads)	Base CPU clock rate	Max. Turbo clock rate	GPU	Base	Max.	L3 cache	TDP	Down	Price (USD)
Xeon E	2286M	8 (16)	2.4 GHz	5.0 GHz	UHD P630	350 MHz	1.25 GHz	16 MiB	45 W	35 W	$623
Xeon E	2276M	6 (12)	2.8 GHz	4.7 GHz	UHD P630		1.20 GHz	12 MiB		35 W	$450
Core i9	9980HK	8 (16)	2.40 GHz	5.00 GHz	UHD 630		1.25 GHz	16 MiB		N/A	$583
Core i9	9880H	8 (16)	2.30 GHz	4.80 GHz			1.20 GHz	16 MiB		35 W	$556
Core i7	9850H	6 (12)	2.60 GHz	4.60 GHz			1.15 GHz	12 MiB			$395
	9750H			4.50 GHz			1.15 GHz				$395
	9750HF			4.50 GHz	N/A						N/A
Core i5	9400H	4 (8)	2.50 GHz	4.30 GHz	UHD 630	350 MHz	1.10 GHz	8 MiB			$250
	9300HF		2.40 GHz	4.10 GHz	N/A
	9300H		2.40 GHz	4.10 GHz	UHD 630	350 MHz	1.05 GHz

References

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External links

"Products formerly Coffee Lake". Intel. Archived from the original on October 5, 2017. Retrieved October 19, 2017.

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[intel.com-1] "Intel Unveils the 8th Gen Intel Core Processor Family for Desktop, Featuring Intel's Best Gaming Processor Ever - Intel Newsroom". Intel.

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