Coffee Lake

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Coffee Lake
Intel i7 8700K.jpg
Intel Core i7-8700K with six physical cores
CPUID code0906eah, 0906ebh
Product code80684
Cores2–8
L1 cache64 KiB per core
L2 cache256 KiB per core
L3 cacheUp to 16 MiB, shared
CreatedOctober 5, 2017; 22 months ago (October 5, 2017)[1]
Transistors14 nm (Tri-Gate) transistors
Architecturex86-64
Instructionsx86-64
Extensions
SocketLGA 1151 with altered pinout to support more than four cores
PredecessorKaby Lake (Optimization)
SuccessorSame generation

Next generation

  • Ice Lake (10nm, new architecture)
  • Comet Lake (14nm, 4th optimization)
GPUGT2, 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 node refinement following Broadwell, Skylake, and Kaby Lake.[2] 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 introduces 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 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 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.[3]

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 October 8, 2018, Intel launched 9th generation Coffee Lake Refresh CPUs with up to eight cores.[4] To avoid running into thermal problems at high clockspeeds, Intel soldered the integrated heat spreader (IHS) to the CPU die instead of using thermal paste on the Core i7 and i9; however, the Core i5 and below still use thermal paste between the CPU die and IHS.[5]

History[edit]

Its development was led by Intel Israel's processor design team in Haifa, Israel, as an optimization of Kaby Lake.[6] 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.[6]

Features[edit]

Coffee Lake CPUs are built using the second refinement of Intel's 14 nm process (14 nm++).[2] 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. 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[edit]

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. 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.[7]

Chipsets[edit]

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,[8][3] 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[9].

Architecture changes compared to Kaby Lake[edit]

Coffee Lake features largely the same CPU core and performance per MHz as Skylake/Kaby Lake.[10][11] 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

Kaby Lake Refresh vs. Coffee Lake[edit]

On August 8, 2017, Intel announced that new eighth generation of processors would be revealed the following August 21.[12] As Intel's previous changes in product generations coincided with new microarchitectures, it was unclear[13] but generally expected that the eighth Core generation products would be based on the new Coffee Lake microarchitecture.[14] 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,[15] Coffee Lake, and Cannon Lake.[16]

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.[17]

List of 8th generation Coffee Lake processors[edit]

Desktop processors[edit]

These processors mark the first time that Intel has released mainstream consumer CPUs that support up to 128GB RAM.[18]

Processor
branding
Model Cores

(Threads)

Base CPU
clock rate
Turbo clock rate[19] [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 128GB

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[20] 3.9 3.8 35 W
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 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 MiB 91 W Up to 64GB

DDR4 2400

$168
8300 3.7 GHz 62 W $138
8300T 3.2 GHz 35 W
8100 3.6 GHz 1.10 GHz 6 MiB 65 W $117
8100F N/A N/A
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 $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 MiB 54W $52
G4900 3.1 GHz $42
G4900T 2.9 GHz 35 W

* various reviews show that the Core i7-8700K CPU may consume over 110W under load.[21]

Workstation processors[edit]

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 128GB

DDR4 2666

ECC

memory

supported

$450
2176G 3.7 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) 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[edit]

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)

Base Max. Down
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
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 MiB 35 W $395
8750H 2.2 GHz 4.1 GHz 1.10 GHz
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 20 W
8557U 1.7 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 2.8 GHz 4.0 GHz 1.05 GHz $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
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
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 3.0 GHz 1.00 GHz 45 W 35 W $225
8109U 2 (4) 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[edit]

Desktop processors[edit]

The first 9th generation Coffee Lake CPUs were released in the fourth quarter of 2018. They include hardware mitigations against certain Meltdown/Spectre vulnerabilities.[22][23]

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

  • Core i7-9*** contain 8/8 cores/threads compared to 6/12 in i7-8***
  • Core i3-9*** 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.[24]

Processor
branding
Model Cores

(Threads)

Base CPU
clock rate
Turbo clock rate[25] [GHz] GPU max GPU
clock rate
L3
cache
TDP Memory

support

Price
(USD)
Number of cores used
1 2 3 4 5 6 7 8
Core i9 9900KS[26] 8 (16) 4.0 GHz 5.0 UHD 630 1.20 GHz 16 MiB Up to 128GB

DDR4 2666

9900K 3.6 GHz 5.0 4.8 4.7 95* W $488
9900KF N/A
9900 3.1 GHz UHD 630 1.20 GHz 65 W $423
9900T 2.1 GHz 4.4 35 W
Core i7 9700K 8 (8) 3.6 GHz 4.9 4.8 4.7 4.6 12 MiB 95 W $374
9700KF N/A
9700 3.0 GHz 4.7 UHD 630 1.20 GHz 65 W $323
9700F N/A
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 1.15 GHz 9 MiB 95 W $262
9600KF N/A
9600 3.1 GHz UHD 630 1.15 GHz 65 W $213
9600T 2.3 GHz 3.9 35 W
9500 3.0 GHz 4.4 1.10 GHz 65 W $192
9500F N/A
9500T 2.2 GHz 3.7 UHD 630 1.10 GHz 35 W
9400 2.9 GHz 4.1 4.0 3.9 1.05 GHz 65 W $182
9400F N/A
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 Up to 64GB

DDR4 2400

$173
9320 3.7 GHz 4.4 UHD 630 1.15 GHz 62 W $154
9300 4.3 $143
9300T 3.2 GHz 3.8 1.10 GHz 35 W
9100 3.6 GHz 4.2 6 MiB 65 W $122
9100F N/A
9100T 3.1 GHz 3.7 UHD 630 1.10 GHz 35 W
Pentium

Gold

G5620 2 (4) 4.0 GHz N/A 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
Celeron G4950 2 (2) 3.3 GHz 2 MiB 54 W $52
G4930 3.2 GHz $42
G4930T 3.0 GHz 1.00 GHz 35 W

* various reviews show that the Core i9-9900K CPU may consume over 140W under load.[27][28][29][30]

Workstation processors[edit]

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 2288G 8 (16) 3.7 GHz 5.0 GHz UHD P630 1.20 GHz 16 MiB 95 W Up to 128GB

DDR4 2666

ECC

memory

supported

$539
2286G 6 (12) 4.0 GHz 4.9 GHz 12 MiB $450
2278G 8 (16) 3.4 GHz 5.0 GHz 16 MiB 80 W $494
2276G 6 (12) 3.8 GHz 4.9 GHz 12 MiB $362
2274G 4 (8) 4.0 GHz 8 MiB 83 W $328
2246G 6 (12) 3.6 GHz 4.8 GHz 12 MiB 80 W $311
2244G 4 (8) 3.8 GHz 8 MiB 71 W $272
2236 6 (12) 3.4 GHz N/A 12 MiB 80 W $284
2234 4 (8) 3.6 GHz 8 MiB 71 W $250
2226G 6 (6) 3.4 GHz 4.7 GHz UHD P630 1.20 GHz 12 MiB 80 W $255
2224G 4 (4) 3.5 GHz 8 MiB 71 W $213
2224 3.4 GHz 4.6 GHz N/A $193

Mobile processors[edit]

Processor

branding

Model Cores

(threads)

Base CPU

clock rate

Max. Turbo

clock rate

GPU GPU clock rate L3

cache

TDP cTDP Price

(USD)

Base Max. Down
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
2276M 6 (12) 2.8 GHz 4.7 GHz 1.20 GHz 12 MiB $450
Core i9 9980HK 8 (16) 2.40 GHz 5.00 GHz UHD 630 1.25 GHz 16 MiB N/A $583
9880H 2.30 GHz 4.80 GHz 1.20 GHz 35 W $556
Core i7 9850H 6 (12) 2.60 GHz 4.60 GHz 1.15 GHz 12 MiB $395
9750H 4.50 GHz
9750HF 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
9300H 2.40 GHz 4.10 GHz 1.05 GHz

See also[edit]

References[edit]

  1. ^ a b "Intel Unveils the 8th Gen Intel Core Processor Family for Desktop, Featuring Intel's Best Gaming Processor Ever - Intel Newsroom". Intel.
  2. ^ a b Cutress, Ian. "The AnandTech Coffee Lake Review: Initial Numbers on the Core i7-8700K and Core i5-8400". p. 2. Retrieved October 5, 2017.
  3. ^ a b Cutress, Ian. "The AnandTech Coffee Lake Review: Initial Numbers on the Core i7-8700K and Core i5-8400". p. 3. Retrieved October 6, 2017.
  4. ^ "Intel Announces World's Best Gaming Processor: New 9th Gen Intel Core i9-9900K". Intel Newsroom.
  5. ^ Jon, Martindale. "Intel's soldered ninth-gen CPUs could give them even greater overclocking room". Digital Trends. Retrieved November 24, 2018.
  6. ^ a b Haifa team sires Intel’s ‘best processor ever’ for laptops By SHOSHANNA SOLOMON, 3 April 2018, Times of Israel
  7. ^ Hirsch, Christian. "Intel Core i9-9900K mit 8 Kernen und 5 GHz für Gamer". heise online (in German). Retrieved October 8, 2018.
  8. ^ Taylor, Paul (April 29, 2017). "Intel 300-series chipsets to provide USB 3.1 Gen2 and Gigabit Wi-Fi". Kitguru.net. Retrieved December 8, 2018.
  9. ^ https://ark.intel.com/content/www/us/en/ark/products/191043/intel-xeon-e-2246g-processor-12m-cache-3-60-ghz.html#tab-blade-1-1
  10. ^ "Intel Coffee Lake Core i7-8700K review: The best gaming CPU you can buy". Ars Technica. Retrieved October 5, 2017.
  11. ^ "Intel Core i7-8700K Review: The New Gaming King". TechSpot. Retrieved October 5, 2017.
  12. ^ Manion, Wayne (August 8, 2017). "Intel's eighth-generation Core CPUs will shine bright on August 21". Tech Report. Retrieved August 21, 2017.
  13. ^ Lustenberg, Alex (August 10, 2017). "Podcast #462 - AMD Threadripper, Intel Rumors, and more!". PC Perspective. Retrieved August 21, 2017.
  14. ^ Cutress, Ian (August 21, 2017). "Intel Launches 8th Generation Core CPUs". Anandtech. Retrieved August 21, 2017.
  15. ^ Marco Chiappetta (October 5, 2017). "Intel Core i7-8700K And Core i5-8400 Review: Coffee Lake - More Cores, Performance And Value". hothardware.com. Archived from the original on October 5, 2017. Retrieved October 19, 2017.
  16. ^ Shrout, Ryan (August 21, 2017). "Intel announces 8th Generation Core Processors, starting with 15-watt quad-core Kaby Lake refresh for notebooks". PC Per. Archived from the original on August 6, 2018. Retrieved August 21, 2017.
  17. ^ "Intel Core i7 8700K / i5 8600K / i5 8400 'Coffee Lake' review: affordable six cores!".
  18. ^ "Intel Product Specification Advanced Search". Intel. Archived from the original on April 29, 2019. Retrieved April 29, 2019.
  19. ^ Cutress, Ian (June 11, 2018). "The Intel Core i7-8086K Review".
  20. ^ Cutress, Ian. "Intel Expands 8th Gen Core: Core i9 on Mobile, Iris Plus, Desktop, Chipsets, and vPro". www.anandtech.com.
  21. ^ "Overclocking, Cooling & Temperature - Core i7-8700K Review: Coffee Lake Brews A Great Gaming CPU". Tom's Hardware. October 5, 2017. Retrieved February 2, 2019.
  22. ^ "Intel Announces 9th Generation Core CPUs, Eight-Core Core i9-9900K". Tom's Hardware. October 8, 2018. Retrieved October 9, 2018.
  23. ^ "Intel announces its latest 9th Gen chips, including its 'best gaming processor' Core i9". The Verge. Retrieved October 9, 2018.
  24. ^ Cutress, Ian. "Intel's Graphics-Free Chips Are Also Savings-Free: Same Price, Fewer Features". Retrieved January 16, 2019.
  25. ^ Cuttress, Ian (October 8, 2018). "Intel Announced 9th Gen Core CPUs: Core i9-9900K (8-Core), i7-9700K, & i5-9600K". AnandTech. Retrieved October 8, 2018.
  26. ^ Cutress, Ian. "Intel Announces 8 Core i9-9900KS: Every Core at 5.0 GHz, All The Time". www.anandtech.com. Retrieved May 26, 2019.
  27. ^ "Intel Core i9 9900K processor review". Guru3D.com. Retrieved October 19, 2018.
  28. ^ Cutress, Ian. "The Intel 9th Gen Review: Core i9-9900K, Core i7-9700K and Core i5-9600K Tested". Retrieved October 19, 2018.
  29. ^ "Intel Core i9-9900K Review". TechPowerUp. Retrieved October 19, 2018.
  30. ^ "Power Consumption - Intel Core i9-9900K 9th Gen CPU Review: Fastest Gaming Processor Ever". Tom's Hardware. October 19, 2018. Retrieved October 21, 2018.

External links[edit]