Coffee Lake

Coffee Lake is Intel's codename for its eighth-generation Core-branded microprocessor family, announced on September 25, 2017. It is manufactured using Intel's second 14 nm process node refinement. 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.

On October 8, 2018, Intel announced what it branded its ninth generation of Core processors, the Coffee Lake Refresh family. 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. 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.

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 low-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. 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.

Features

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

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, and 300 series motherboards do not officially support Skylake or Kaby Lake processors. It is although possible, in some motherboards, to cover some pins on the socket and flash a custom BIOS image which accepts newer processors on older sixth or seventh generation motherboards.

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.

Architecture changes compared with Kaby Lake Coffee Lake features largely the same CPU core and performance per MHz as Skylake/Kaby Lake. Features specific to Coffee Lake include:

CPU Increased core count: Core i3 increased from 2 to 4 cores, Core i5 and 8th Generation i7 parts increased from 4 to 6 cores, 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) The 9th generation loses Hyper-threading except on i9. 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 Hardware mitigations against spectre variant 3 and 5 on 9th generation GPU

Increased iGPU clock speeds by 50 MHz and rebranded it UHD (Ultra High Definition)

I/O

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. 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. 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, Whiskey Lake, and Cannon Lake.

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 128 GB RAM.

Processorbranding Model Cores (threads) CPU clock rate (GHz) GPU L3cache TDP Memorysupport Release date Price(USD) Base Turbo clock rate Model Max GPUclock 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 UHD630 1.20 12MB 95W Up to 128 GB DDR4-2666 $425 8700K 3.7 4.7 $359 8700 3.2 4.6 4.5 4.4 4.3 65W $303 8700T 2.4 4.0 4.0 3.9 3.8 35W Core i5 8600K 6 (6) 3.6 4.3 4.2 4.1 1.15 9MB 95W $257 8600 3.1 65W $213 8600T 2.3 3.7 3.6 3.5 35W 8500 3.0 4.1 4.0 3.9 1.10 65W $192 8500T 2.1 3.5 3.4 3.3 3.2 35W 8400 2.8 4.0 3.9 3.8 1.05 65W $1828400T 1.7 3.3 3.2 3.1 3.0 35W Core i3 8350K 4 (4) 4.0 colspan="6" rowspan="15" 1.15 8MB 91W Up to 64 GB DDR4-2400 $1688300 3.7 62W $138 8300T 3.2 35W 8100 3.6 1.10 6MB 65W $117 8100F colspan="2" ?8100T 3.1 UHD630 1.10 35W $117 Pentium GoldG5600 2 (4) 3.9 4MB 54W $86 G5500 3.8 $75 G5500T 3.2 35W G5400 3.7 UHD610 1.05 54W $64 G5400T 3.1 35W Celeron G4920 2 (2) 3.2 2MB 54W $52 G49003.1 $42 G4900T 2.935W

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

Coffee Lake-S WS (server/workstation processors) LGA 1151

Processorbranding Model Cores (threads) CPU clock rate (GHz) GPU L3cache TDP Memorysupport Price (USD) Base Max. Turbo Model max GPU (GHz) Xeon E 2186G 6 (12) 3.8 4.7 UHD P630 1.20 12MB 95W DDR4-2666 Up to 128 GB ECC memory supported $450 2176G 3.7 80W $362 2146G 3.5 4.5 1.15 $311 2136 3.3 colspan="2" $284 2126G 6 (6) UHD P630 1.15 $255 2174G 4 (8) 3.8 4.7 1.20 8MB 71W $328 2144G 3.6 4.5 1.15 $272 2134 3.5 colspan="2" $250 2124G 4 (4) 3.4 UHD P630 1.15 $213 2124 3.3 4.3 colspan="2" $193 2104G 3.2 UHD P630 1.10 65W

Mobile processors (Coffee Lake H and Coffee Lake U)

Processor branding Model Cores (threads) CPU clock rate (GHz) GPU L3 cache L4 cache (eDRAM) TDP cTDP Price (USD)BaseMax. TurboModelclock rateBase (MHz)Max. (GHz)Down Xeon E 2186M 6 (12) 2.9 4.8 UHD P630 350 1.20 12MB rowspan="6" 45W 35W $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 9MB 35W $395 8750H 2.2 4.1 1.10 8700B 3.2 4.6 1.20 12MB 65W $303 8569U 4 (8) 2.8 4.7 Iris Plus 655 300 8MB 128MB 28W $431 8559U 2.7 4.5 20 8557U 1.7 Iris Plus 645 1.15 15W OEM Core i5 8500B6 (6) 3.0 4.1 UHD 630 350 1.10 9MB rowspan="4" 65W rowspan="2" $192 8400B 2.8 4.0 1.05 $182 8400H 4 (8) 2.5 4.2 1.10 8MB 45W 35W $2508300H 2.3 4.0 1.0 8279U 2.4 4.1 Iris Plus 655 300 1.15 6MB 128MB 28W $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 15W 10W OEM 8257U 1.4 3.9 Iris Plus 645 1.05 128MB OEM Core i3 8100B 4 (4) 3.6 rowspan="2" UHD 630 350 1.05 rowspan="2" 65W $133 8100H 3.0 1.00 45W 35W $225 8109U 2 (4) 3.6 Iris Plus 655 300 1.05 4MB 128MB 28W 20W $304

List of 9th generation Coffee Lake processors (Coffee Lake Refresh)

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

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. Intel eventually reduced the official pricing of those CPUs in October 2019.

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".

Coffee Lake-S (desktop processors)

Processorbranding Model Cores (threads) CPU clock rate (GHz) GPU Smart cache TDP Memory support Price (USD) BaseTurboModel max GPUclock rateNumber of cores used 1 2 3 4 5 6 7 8 Core i9 9900KS 8 (16) 4.0 5.0 UHD 630 1.20 16MB 127W DDR4-2666 2-channel up to 128 GB $513 9900K 3.6 5.0 4.9 4.8 4.7 95W $488 9900KF colspan="2" 9900 3.1 4.7 4.6 UHD 630 1.20 65W $423 9900T 2.1 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.6 35W Core i7 9700K 8 (8) 3.6 4.9 4.8 4.7 4.6 12MB 95W $374 9700KF colspan="2" 9700 3.0 4.7 4.7 4.6 4.5 UHD 630 1.20 65W $323 9700F colspan="2" 9700T 2.0 4.3 UHD 630 1.20 35W Core i59600K 6 (6) 3.7 4.6 4.5 4.4 4.3 colspan="2" rowspan="10" 1.15 9MB 95W $262 9600KF colspan="2" 9600 3.1 UHD 630 1.15 65W $213 9600T 2.3 3.9 35W 9500 3.0 4.4 4.3 4.2 4.1 1.10 65W $192 9500F colspan="2" 9500T 2.2 3.7 UHD 630 1.10 35W 9400 2.9 4.1 4.0 3.9 1.05 65W $182 9400F colspan="2" 9400T 1.8 3.4 UHD 630 1.05 35W Core i3 9350KF 4 (4) 4.0 4.6 colspan="4" rowspan="8" colspan="2" 8MB 91W DDR4-2400 2-channel up to 64 GB $173 9350K UHD 630 1.15 9320 3.7 4.4 62W $1549300 4.3 4.2 4.1 $143 9300T 3.2 3.8 1.10 35W 9100 3.6 4.2 4.1 4.0 6MB 65W $122 9100F colspan="2" 9100T 3.1 3.73.4 UHD 630 1.10 35W Pentium Gold G5620 2 (4) 4.0 colspan="8" rowspan="7" 4MB 54W $86 G5600T 3.3 1.05 35W $75 G5420 3.8 UHD 610 54W $64 G5420T 3.2 35W Celeron G4950 2 (2) 3.3 2MB 54W $52 G4930 3.2 $42 G4930T 3.0 1.00 35W

Server/workstation processors Coffee Lake-E CPUs require C242 or C246 chipset.

Processor branding Model Cores (threads) CPU clock rate (GHz) GPU Smartcache TDP Memorysupport 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 16MB 95W DDR4-2666 2-channel up to 128 GB with ECC $539 2278G 3.4 4.7 4.6 80W $494 2286G 6 (12) 4.0 4.9 4.8 4.7 4.6 colspan="2" rowspan="5" 12MB 95W $450 2276G 3.8 80W $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 colspan="4" rowspan="5" 8MB 83W $328 2244G 3.8 4.8 4.7 4.6 4.5 71W $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 (Xeon E and Coffee Lake-H Refresh)

Processor brandingModelCores (threads)CPU clock rate (GHz)GPUL3 cache

(MB)TDP (W)cTDP