|CPUID code||0906eah, 0906ebh|
|L1 cache||64 kiB per core|
|L2 cache||256 kiB per core|
|L3 cache||Up to 2 MiB per core|
|Created||October 5, 2017|
|Transistors||14 nm (Tri-Gate) transistors|
|Socket||Variant of LGA 1151 *|
|Predecessor||Kaby Lake (Optimization)|
Whiskey Lake (3rd Optimization)|
Mobile: Cannon Lake (Process)
Ice Lake (Architecture)
Coffee Lake is Intel's codename for the second 14 nm process refinement following Broadwell, Skylake, and Kaby Lake. 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. 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.
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.
Coffee Lake CPUs are built using the second refinement of Intel's 14 nm process (14++). 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.
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.
Architecture changes compared to Kaby Lake
- 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
On August 8, 2017, Intel announced that new eighth generation of processors would be revealed the following August 21. As Intel's previous changes in product generations coincided with new microarchitectures, it was unclear but generally expected that the eighth Core generation products would be based on the new Coffee Lake microarchitecture. 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, Coffee Lake, and Cannonlake.
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.
List of Coffee Lake processors
|Turbo clock rate [GHz]||GPU||max GPU
|Number of cores used|
|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|
|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|
|G5600||2||3.9 GHz||4 MB||54 W||$86|
|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|
|G4900T||2.9 GHz||35 W|
|GPU||GPU clock rate||L3
|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|
- "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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