Coffee Lake

Coffee Lake is Intel's codename for its eighth generation Core microprocessor family, announced on September 25, 2017.[4] It is manufactured using Intel's second 14 nm process node refinement.[5] 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]
CPUID code0906eah, 0906ebh
Product code80684
Cache
L1 cache64 KiB per core
L2 cache256 KiB per core
L3 cacheUp to 16 MiB, shared
Architecture and classification
Min. feature size14 nm (Tri-Gate) transistors
Architecturex86-64
Instructionsx86-64
Extensions
Physical specifications
Cores
  • 2–8
GPU(s)GT2, GT3e
Socket(s)
Products, models, variants
Brand name(s)
    • Celeron
    • Pentium Gold
    • Core i3
    • Core i5
    • Core i7
    • Core i9
    • Xeon E
History
PredecessorKaby Lake (Optimization)
SuccessorSame generation

Next generation

On October 8, 2018, Intel announced what it branded its ninth generation of Core processors, the Coffee Lake Refresh family.[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]The generation was defined by the first increase of cores in mainstream chips since 2011. Quad-Core i7s and i5s became Hexa-Cores and dual core i3s became quad cores.

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.[8]

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

Its development was led by Intel Israel's processor design team in Haifa, Israel, as an optimization of Kaby Lake.[9] 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.[9]

Features

Coffee Lake CPUs are built using the second refinement of Intel's 14 nm process (14 nm++).[5] 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.[10]

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,[11][8] 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.[12]

Architecture changes compared with Kaby Lake

Coffee Lake features largely the same CPU core and performance per MHz as Skylake/Kaby Lake.[13][14] 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 the first of its new eighth generation of processors would be mobile processors.[15] As Intel's previous changes in product generations coincided with new microarchitectures, it was unclear[16] but generally expected that the eighth Core generation products would be based on the new Coffee Lake microarchitecture.[17] 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[18] and Cannon Lake.[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 $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
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 64 GiB

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 G4930 2 (2) 3.2 GHz 2 MiB 54W $42
G4920 $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.[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 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 (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)

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 (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]

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 F suffix CPUs lack an integrated GPU, Intel set the same price for these CPUs as their featureful counterparts.[26] Intel eventually reduced 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 4.9 4.8 4.7 95* W $488
9900KF N/A
9900 3.1 GHz 4.9 4.8 4.7 4.6 UHD 630 1.20 GHz 65 W $423
9900T 2.1 GHz 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 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 DDR4-2400

2-channel

up to 64 GiB

$173
9350k UHD 630 1.15 GHz
9320 3.7 GHz 4.4 62 W $154
9300 4.3 $143
9300T 3.2 GHz 3.8 1.10 GHz 35 W
9100 3.6 GHz 4.2 4.1 4.0 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.[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 3.4 GHz 80 W $494
2286G 6 (12) 4.0 GHz 4.9 GHz 12 MiB 95 W $450
2276G 3.8 GHz 80 W $362
2246G 3.6 GHz 4.8 GHz $311
2236 3.4 GHz N/A $284
2226G 6 (6) 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 N/A $250
2224G 4 (4) 3.5 GHz 4.7 GHz UHD P630 $213
2224 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)

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
9300HF 2.40 GHz 4.10 GHz N/A
9300H UHD 630 350 MHz 1.05 GHz

See also

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.
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  5. Cutress, Ian. "The AnandTech Coffee Lake Review: Initial Numbers on the Core i7-8700K and Core i5-8400". p. 2. Retrieved October 5, 2017.
  6. "Intel Announces World's Best Gaming Processor: New 9th Gen Intel Core i9-9900K". Intel Newsroom.
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  8. Cutress, Ian. "The AnandTech Coffee Lake Review: Initial Numbers on the Core i7-8700K and Core i5-8400". p. 3. Retrieved October 6, 2017.
  9. Haifa team sires Intel’s ‘best processor ever’ for laptops By SHOSHANNA SOLOMON, 3 April 2018, Times of Israel
  10. Hirsch, Christian. "Intel Core i9-9900K mit 8 Kernen und 5 GHz für Gamer". heise online (in German). Retrieved October 8, 2018.
  11. 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.
  12. 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
  13. "Intel Coffee Lake Core i7-8700K review: The best gaming CPU you can buy". Ars Technica. Retrieved October 5, 2017.
  14. "Intel Core i7-8700K Review: The New Gaming King". TechSpot. Retrieved October 5, 2017.
  15. Manion, Wayne (August 8, 2017). "Intel's eighth-generation Core CPUs will shine bright on August 21". Tech Report. Retrieved August 21, 2017.
  16. Lustenberg, Alex (August 10, 2017). "Podcast #462 - AMD Threadripper, Intel Rumors, and more!". PC Perspective. Retrieved August 21, 2017.
  17. Cutress, Ian (August 21, 2017). "Intel Launches 8th Generation Core CPUs". Anandtech. Retrieved August 21, 2017.
  18. 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.
  19. 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.
  20. "Intel Product Specification Advanced Search". Intel. Archived from the original on April 29, 2019. Retrieved April 29, 2019.
  21. Cutress, Ian (June 11, 2018). "The Intel Core i7-8086K Review".
  22. Cutress, Ian. "Intel Expands 8th Gen Core: Core i9 on Mobile, Iris Plus, Desktop, Chipsets, and vPro". www.anandtech.com.
  23. "Overclocking, Cooling & Temperature - Core i7-8700K Review: Coffee Lake Brews A Great Gaming CPU". Tom's Hardware. October 5, 2017. Retrieved February 2, 2019.
  24. "Intel Announces 9th Generation Core CPUs, Eight-Core Core i9-9900K". Tom's Hardware. October 8, 2018. Retrieved October 9, 2018.
  25. "Intel announces its latest 9th Gen chips, including its 'best gaming processor' Core i9". The Verge. Retrieved October 9, 2018.
  26. Cutress, Ian. "Intel's Graphics-Free Chips Are Also Savings-Free: Same Price, Fewer Features". AnandTech. Retrieved January 16, 2019.
  27. Cutress, Ian. "Intel Announces Price Cut for 9th Generation F and KF Processors". www.anandtech.com. Retrieved May 1, 2020.
  28. Alcorn, Paul. "Intel Announces Core i9-9900KS With $513 RCP, Arrives October 30 with 127W TDP". Tom's Hardware. Retrieved October 28, 2019.
  29. Cuttress, Ian (October 8, 2018). "Intel Announces 9th Gen Core CPUs: Core i9-9900K (8-Core), i7-9700K, & i5-9600K". AnandTech. Archived from the original on October 8, 2018. Retrieved October 8, 2018.
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