Coffee Lake

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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[1]
Transistors 14 nm (Tri-Gate) transistors
Architecture x86-64
Instructions x86-64
Extensions
Socket Variant of LGA 1151 *
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

Coffee Lake is Intel's codename for the second 14 nm process 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.

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). 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.[1] Coffee Lake will be used in conjunction with the 300-series chipset, and will not work with the 100- and 200-series chipsets. 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 and for the first time in its history six core Core i9 mobile CPUs and the first Coffee Lake ultra-power CPUs with Intel Iris Plus graphics.

Features[edit]

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

The 300 series chipsets, while using physically identical LGA 1151 socket to the 200 series chipsets, are only compatible with Coffee Lake CPUs, meaning that older motherboards do not support Coffee Lake processors.[4][3]

Architecture changes compared to Kaby Lake[edit]

Coffee Lake features largely the same CPU core and performance per MHz as Skylake/Kaby Lake.[5][6] 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 cores
  • Increased turbo clock speeds across i5 and i7 CPUs models (increased by up to 200 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
  • 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.[7] As Intel's previous changes in product generations coincided with new microarchitectures, it was unclear[8] but generally expected that the eighth Core generation products would be based on the new Coffee Lake microarchitecture.[9] 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,[10] Coffee Lake, and Cannonlake.[11]

Additional core resources in midrange eighth-generation Coffee Lake desktop chips offer significant gains in performance versus previous seventh-generation Intel CPUs in multithreaded workloads. However, the architecture delivers no IPC difference from Skylake or Kaby Lake.[12]

List of Coffee Lake processors[edit]

Desktop processors[edit]

Desktop Coffee Lake CPUs are intended to run with LGA 1151 socket motherboards but they are only compatible with 300-series chipsets.[13]

Processor
branding
Model Cores Threads Base CPU
clock rate
Turbo clock rate[14] [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 or 4.1 ? 3.9 or 4.0 ? 3.9 3.8 35 W
Core i5 8600K 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 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 3.2 GHz 2 MB 54W $52
G4900 3.1 GHz $42
G4900T 2.9 GHz 35 W

Mobile processors[edit]

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
Core i9 8950HK 6 (12) 2.9 GHz 4.8 GHz UHD 630 350 MHz 1.20 GHz 12 MB N/A 45 W 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
8559U 4 (8) 2.7 GHz 4.5 GHz Iris Plus 655 300 MHz 1.20 GHz 8 MB 128 MB 28 W 20 W $431
Core i5 8400H 2.5 GHz 4.2 GHz UHD 630 350 MHz 1.10 GHz N/A 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

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 2017-10-05. 
  3. ^ a b Cutress, Ian. "The AnandTech Coffee Lake Review: Initial Numbers on the Core i7-8700K and Core i5-8400". p. 3. Retrieved 2017-10-06. 
  4. ^ "Intel 300-series chipsets to provide USB 3.1 Gen2 and Gigabit Wi-Fi | KitGuru". www.kitguru.net. Retrieved April 29, 2017. 
  5. ^ "Intel Coffee Lake Core i7-8700K review: The best gaming CPU you can buy". Ars Technica. Retrieved 2017-10-05. 
  6. ^ "Intel Core i7-8700K Review: The New Gaming King". TechSpot. Retrieved 2017-10-05. 
  7. ^ Manion, Wayne (August 8, 2017). "Intel's eighth-generation Core CPUs will shine bright on August 21". Tech Report. Retrieved August 21, 2017. 
  8. ^ Lustenberg, Alex (August 10, 2017). "Podcast #462 - AMD Threadripper, Intel Rumors, and more!". PC Perspective. Retrieved August 21, 2017. 
  9. ^ Cutress, Ian (August 21, 2017). "Intel Launches 8th Generation Core CPUs". Anandtech. Retrieved August 21, 2017. 
  10. ^ Marco Chiappetta (2017-10-05). "Intel Core i7-8700K And Core i5-8400 Review: Coffee Lake - More Cores, Performance And Value". hothardware.com. Archived from the original on 2017-10-05. Retrieved 2017-10-19. 
  11. ^ Shrout, Ryan (August 21, 2017). "Intel announces 8th Generation Core Processors, starting with 15-watt quad-core Kaby Lake refresh for notebooks". PC Per. Retrieved August 21, 2017. 
  12. ^ "Intel Core i7 8700K / i5 8600K / i5 8400 'Coffee Lake' review: affordable six cores!". 
  13. ^ "8th Gen (S-platform) Intel® Processor Family Datasheet Vol.1". Retrieved 8 October 2017. 
  14. ^ Cutress, Ian (2018-06-11). "The Intel Core i7-8086K Review". 

External links[edit]