Coffee Lake

Coffee Lake is Intel's codename for its eighth-generation Core microprocessor family, announced on September 25, 2017.[5] It is manufactured using Intel's second 14 nm process node refinement.[6] Desktop Coffee Lake processors introduced i5 and i7 CPUs featuring six cores (along with hyper-threading in the case of the latter) and Core i3 CPUs with four cores and no hyperthreading.

Coffee Lake
Intel Core i7-8700K with six physical cores
General information
LaunchedOctober 5, 2017 (October 5, 2017)[1]
DiscontinuedJune 4, 2021 (8th gen, except for Xeons)[2][3]
December 24, 2021 (9th gen)[4]
Marketed byIntel
Designed byIntel
Common manufacturer(s)
CPUID code0906eah, 0906ebh, 0906ech, 0906edh
Product code80684
Cache
L1 cache64 KB[lower-alpha 1] per core
L2 cache256 KB per core
L3 cacheUp to 16 MB, shared
L4 cache128 MB of eDRAM (on some models)
Architecture and classification
ApplicationDesktop
Technology nodeIntel 14 nm++
MicroarchitectureSkylake
Instruction setx86-64
Instructionsx86-64
Extensions
Physical specifications
Cores
  • 2–8
GPU(s)GT2, GT3e
Socket(s)
Products, models, variants
Product code name(s)
  • CFL
Brand name(s)
    • Celeron
    • Pentium Gold
    • Core i3
    • Core i5
    • Core i7
    • Core i9
    • Xeon E
History
Predecessor(s)Kaby Lake (Optimization)
Successor(s)Same generation

Next generation

Support status
Legacy support for iGPU

On October 8, 2018, Intel announced what it branded its ninth generation of Core processors, the Coffee Lake Refresh family.[7] 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.[8] The generation was defined by another increase of core counts.

Coffee Lake is used 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.[9]

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.

History

Coffee Lake's development was led by Intel Israel's processor design team in Haifa, Israel, as an optimization of Kaby Lake.[10] 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.[10]

Features
Coffee Lake processor die from an i7-8700K with 6 cores

Coffee Lake CPUs are built using the second refinement of Intel's 14 nm process (14 nm++).[6] 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 hyperthreaded cores, 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 and L1 Terminal Fault.[11]

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,[12][9] 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 require motherboards with the C246 chipset.[13]

Architecture changes compared with Kaby Lake

Coffee Lake features largely the same CPU core and performance per MHz as Skylake/Kaby Lake.[14][15] 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 MT/s (for i5, i7 and i9 parts) and 2400 MT/s (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
Main article: Kaby Lake § List of Kaby Lake R processors

On August 8, 2017, Intel announced the first of its new eighth generation of processors would be mobile processors.[16] As Intel's previous changes in product generations coincided with new microarchitectures, it was unclear[17] but generally expected that the eighth Core generation products would be based on the new Coffee Lake microarchitecture.[18] When it was officially announced on August 21, 2017, however, Intel stated that the eighth generation family would be based on multiple microarchitectures: Kaby Lake Refresh, Coffee Lake[19] and Cannon Lake.[20]

List of 8th generation Coffee Lake processors

Coffee Lake-S (Desktop processors)

These processors mark the first time that Intel has released mainstream consumer CPUs that support up to 128GB RAM.[21]

Processor
branding		 Model Cores
(threads)		 CPU clock rate (GHz) GPU L3
cache[lower-alpha 1]		 TDP Memory
support		 Release date Price
(USD)[lower-alpha 2]
Base Turbo clock rate[22] Model Max GPU
clock rate

(GHz)

Number of cores used
1 2 3 4 5 6
Core i7 8086K 6 (12) 4.0 5.0 4.6 4.5 4.4 4.3 UHD
630		 1.20 12 MB 95 W Up to 128 GB

DDR4-2666

 Jun 8, 2018 $425
8700K 3.7 4.7 Oct 5, 2017 $359
8700 3.2 4.6 4.5 4.4 4.3 65 W $303
8700T 2.4 4.0 4.0[23] 3.9 3.8 35 W Apr 2, 2018
Core i5 8600K 6 (6) 3.6 4.3 4.2 4.1 1.15 9 MB 95 W Oct 5, 2017 $257
8600 3.1 65 W Apr 2, 2018 $213
8600T 2.3 3.7 3.6 3.5 35 W
8500 3.0 4.1 4.0 3.9 1.10 65 W $192
8500T 2.1 3.5 3.4 3.3 3.2 35 W
8400 2.8 4.0 3.9 3.8 1.05 65 W Oct 5, 2017 $182
8400T 1.7 3.3 3.2 3.1 3.0 35 W Apr 2, 2018
Core i3 8350K 4 (4) 4.0 — 1.15 8 MB 91 W Up to 64 GB

DDR4-2400

 Oct 5, 2017 $168
8300 3.7 62 W Apr 2, 2018 $138
8300T 3.2 35 W
8100 3.6 1.10 6 MB 65 W Oct 5, 2017 $117
8100F — Jan 7, 2019  ?
8100T 3.1 UHD
630		 1.10 35 W Apr 2, 2018 $117
Pentium
Gold		 G5600 2 (4) 3.9 4 MB 54 W $86
G5500 3.8 $75
G5500T 3.2 35 W
G5400 3.7 UHD
610		 1.05 54 W $64
G5400T 3.1 35 W
Celeron G4930 2 (2) 3.2 2 MB 54 W $42
G4920 $52
G4900 3.1 $42
G4900T 2.9 35 W
  1. Transistorized memory, such as RAM, ROM, flash and cache sizes as well as file sizes are specified using binary meanings for K (10241), M (10242), G (10243), etc.
  2. Price is Recommended Customer Price (RCP) at launch. RCP is the trade price that processors are sold by Intel to retailers and OEMs. Actual MSRP for consumers is higher

* various reviews show that the Core i7-8700K CPU may consume over 110W under load.[24]

Coffee Lake-E (Workstation processors)
Processor
branding		 Model Cores
(threads)		 CPU clock rate (GHz) GPU L3
cache		 TDP Memory
support		 Price
(USD)
Base Max. Turbo Model max GPU

(GHz)

Xeon E 2186G 6 (12) 3.8 4.7 UHD P630 1.20 12 MB 95 W DDR4-2666

Up to 128 GB ECC memory supported

 $450
2176G 3.7 80 W $362
2146G 3.5 4.5 1.15 $311
2136 3.3 — $284
2126G 6 (6) UHD P630 1.15 $255
2174G 4 (8) 3.8 4.7 1.20 8 MB 71 W $328
2144G 3.6 4.5 1.15 $272
2134 3.5 — $250
2124G 4 (4) 3.4 UHD P630 1.15 $213
2124 3.3 4.3 — $193
2104G 3.2 — UHD P630 1.10 65 W

Mobile processors (Coffee Lake H & Coffee Lake U)
Processor
branding		 Model Cores
(threads)		 CPU clock rate (GHz) GPU L3
cache		 L4 cache
(eDRAM)		 TDP cTDP Price
(USD)
Base Max.

Turbo

 Model clock rate
Base

(MHz)

 Max.

(GHz)

 Down
Xeon E 2186M 6 (12) 2.9 4.8 UHD P630 350 1.20 12 MB — 45 W 35 W $623
2176M 2.7 4.4 $450
Core i9 8950HK 2.9 4.8 UHD 630 — $583
Core i7 8850H 2.6 4.3 1.15 9 MB 35 W $395
8750H 2.2 4.1 1.10
8700B 3.2 4.6 1.20 12 MB 65 W — $303
8569U 4 (8) 2.8 4.7 Iris Plus 655 300 8 128 28 — $431
8559U 2.7 4.5 20
8557U 1.7 Iris Plus 645 1.15 15 — OEM
Core i5 8500B 6 (6) 3.0 4.1 UHD 630 350 1.10 9 MB — 65 W — $192
8400B 2.8 4.0 1.05 $182
8400H 4 (8) 2.5 4.2 1.10 8 MB 45 W 35 W $250
8300H 2.3 4.0 1.0
8279U 2.4 4.1 Iris Plus 655 300 1.15 6 MB 128 28 W — $320
8269U 2.6 4.2 1.10 20
8259U 2.3 3.8 1.05
8260U 1.6 3.9 UHD 620 1.10 15 W 10 W OEM
8257U 1.4 3.9 Iris Plus 645 1.05 — OEM
Core i3 8100B 4 (4) 3.6 — UHD 630 350 1.05 — 65 W — $133
8100H 3.0 1.00 45 W 35 W $225
8109U 2 (4) 3.6 Iris Plus 655 300 1.05 4 MB 128 28 W 20 W $304

List of 9th generation Coffee Lake processors (Coffee Lake Refresh)
Coffee Lake Refresh die from an i9-9900K

The first 9th generation Coffee Lake CPUs were released in the fourth quarter of 2018. They include hardware mitigations against certain Meltdown/Spectre vulnerabilities.[25][26]

The main differences from the 8th generation (besides increased frequency) are:

  • 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 CPUs with F suffix lack an integrated GPU, Intel set the same price for these CPUs as their featureful counterparts.[27] Intel eventually reduced the official pricing of those CPUs in October 2019.[28]

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".[29]

Coffee Lake-R (Desktop processors)
Processor
branding		 Model Cores
(threads)		 CPU clock rate (GHz) GPU Smart
cache		 TDP Memory support Price
(USD)
Base Turbo[30] Model max GPU
clock rate
Number of cores used
1 2 3 4 5 6 7 8
Core i9 9900KS 8 (16) 4.0 5.0 UHD 630 1.20 16 MB 127 W DDR4-2666

2-channel up to 128 GB

 $513
9900K 3.6 5.0 4.9 4.8 4.7 95 W $488
9900KF —
9900 3.1 4.7 4.6 UHD 630 1.20 65 W $423
9900T 2.1 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.6 35 W
Core i7 9700K 8 (8) 3.6 4.9 4.8 4.7 4.6 12 MB 95 W $374
9700KF —
9700 3.0 4.7 4.7 4.6 4.5 UHD 630 1.20 65 W $323
9700F —
9700T 2.0 4.3 UHD 630 1.20 35 W
Core i5 9600K 6 (6) 3.7 4.6 4.5 4.4 4.3 — 1.15 9 MB 95 W $262
9600KF —
9600 3.1 UHD 630 1.15 65 W $213
9600T 2.3 3.9 35 W
9500 3.0 4.4 1.10 65 W $192
9500F —
9500T 2.2 3.7 UHD 630 1.10 35 W
9400 2.9 4.1 4.0 3.9 1.05 65 W $182
9400F —
9400T 1.8 3.4 UHD 630 1.05 35 W
Core i3 9350KF 4 (4) 4.0 4.6 — — 8 MB 91 W DDR4-2400

2-channel up to 64 GB

 $173
9350K UHD 630 1.15
9320 3.7 4.4 62 W $154
9300 4.3 $143
9300T 3.2 3.8 1.10 35 W
9100 3.6 4.2 4.1 4.0 6 MB 65 W $122
9100F —
9100T 3.1 3.7 UHD 630 1.10 35 W
Pentium
Gold		 G5620 2 (4) 4.0 — 4 MB 54 W $86
G5600T 3.3 1.05 35 W $75
G5420 3.8 UHD 610 54 W $64
G5420T 3.2 35 W
Celeron G4950 2 (2) 3.3 2 MB 54 W $52
G4930 3.2 $42
G4930T 3.0 1.00 35 W

Workstation processors

Coffee Lake-W CPUs require C242 or C246 chipset.

Processor
branding		 Model Cores
(threads)		 CPU clock rate (GHz) GPU Smart
cache		 TDP Memory
support		 Price
(USD)
Base Turbo
Number of cores used
1 2 3 4 5 6 7 8
Xeon E 2288G 8 (16) 3.7 5.0 4.9 4.8 4.7 UHD P630 16 MB 95 W DDR4-2666

2-channel up to 128 GB with ECC

 $539
2278G 3.4 4.7 4.6 80 W $494
2286G 6 (12) 4.0 4.9 4.8 4.7 4.6 — 12 MB 95 W $450
2276G 3.8 80 W $362
2246G 3.6 4.8 4.7 4.6 4.5 $311
2236 3.4 — $284
2226G 6 (6) 4.7 4.6 4.5 4.4 UHD P630 $255
2274G 4 (8) 4.0 4.9 4.8 4.6 4.4 — 8 MB 83 W $328
2244G 3.8 4.8 4.7 4.6 4.5 71 W $272
2234 3.6 — $250
2224G 4 (4) 3.5 4.7 4.6 4.5 4.4 UHD P630 $213
2224 3.4 4.6 4.5 4.4 4.2 — $193

Mobile processors
Processor

branding

 Model Cores

(threads)

 CPU clock rate (GHz) GPU L3

cache

(MB)

 TDP

(W)

 cTDP

(W)

 Price

(US$)

Base Turbo Model clock rate
Number of cores used Base

(MHz)

 Max.

(GHz)

 Down
1 2 3 4 5 6 7 8
Xeon E 2286M 8 (16) 2.4 5.0 UHD P630 350 1.25 16 45 35 623
2276M 6 (12) 2.8 4.7 — 1.20 12 450
Core i9 9980HK 8 (16) 2.4 5.00 4.9 4.8 4.7 4.6 4.5 4.4 4.2 UHD 630 1.25 16 — 583
9880H 2.3 4.80 1.20 35 556
Core i7 9850H 6 (12)[31] 2.6 4.60 — 1.15 12 395
9750H 4.50 4.40 4.3 4.2 4.1 4.0
9750HF — —
Core i5 9400H 4 (8) 2.5 4.30 — UHD 630 350 1.10 8 250
9300HF 2.4 4.10 —
9300H UHD 630 350 1.05

See also

Notes

    References
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    2. Broekhuijsen, Niels (June 1, 2020). "Intel Discontinues All 8th-Gen Coffee Lake-S CPUs Up To 8700K". Tom's Hardware. Retrieved June 6, 2020.
    3. "Product Change Notification #117617-00" (PDF). Intel. June 1, 2020. Retrieved June 6, 2020.
    4. "Intel Discontinues Entire 9th Gen CPU Lineup including the Core i9-9900K, Core i7-9700K, and i5-9600K". Hardware Times. December 8, 2020. Retrieved April 12, 2021.
    5. Cutress, Ian (September 25, 2017). "Intel Announces 8th Generation Core "Coffee Lake" Desktop Processors: Six-core i7, Four-core i3, and Z370 Motherboards". Anandtech.
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