Intel Coffee Lake microarchitecture

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Coffee Lake (micro architecture)
Manufacturer Intel
Manufacturing process 14 nm ++
base Socket 1151
Sales
description
Celeron
Pentium Gold
Core i3, 8th Generation
Core i5, 8th Generation
Core i7, 8th Generation
Core i9, 8th Generation
Cores / threads 2/2, 2/4, 4/4, 6/6, 6/12
L1 cache 32 + 32 KB per core
L2 cache 256 KB per core
L3 cache 2/4/6/8/9/12 MB
predecessor Skylake
Kaby Lake
successor Whiskey Lake
Cannon Lake

Coffee Lake is the code name of a processor microarchitecture from chip manufacturer Intel that was released in the fourth quarter of 2017. After Kaby Lake , it is the second optimization of the Skylake microarchitecture and is manufactured in the third generation of Intel's 14 nm process ( 14 nm ++ ). With six physical cores in one processor for the mainstream platform for the first time, performance increases between 16 and 34% are achieved in applications compared to the respective predecessor model.

design

Like Broadwell , Coffee Lake is manufactured in a 14 nm process. However, this is the second revision of this process, called 14 nm ++ , which, compared to 14 nm + (Kaby Lake), enables higher clock rates due to even lower leakage currents . The actual processor core has been adopted almost unchanged since Skylake. At Coffee Lake, however, Intel is installing six physical cores in a processor for the mainstream socket 1151 for the first time . Combined with high clock rates, performance increases between 16 and 34% are achieved in applications compared to the respective predecessor model. Compared to the Ryzen processors from AMD , Coffee Lake benefits from its high clock rate, but is left behind in heavily parallelized applications. For most games, the i7-8700K (Coffee Lake) is the fastest processor in 2017.

base

For desktop processors of the mainstream series, Intel continues to use socket 1151 , but has changed the pin assignment to improve the power supply. It is speculated that these changes were not only made for the Coffee Lake processors with six cores, but also for the supposedly upcoming eight-core processors. Older mainboards do not start with Coffee Lake processors due to a chipset lock. Attempts to circumvent this have not yet been fully functional. Initially, Intel only offered the Z370 chipset for Coffee Lake processors on socket 1151. This is a refresh of the Z270. More chipsets were added at the beginning of 2018 (B360, H310, H370, Q370).

Instruction sets

The Coffee Lake processors support SSE , SSE2 , SSE3 , SSE4 , TXT , AES-NI , MPX and SGX .

AVX , AVX2 is not supported by the Intel Celeron and Intel Pentium models, but only from the Intel Core i3.

TSX-NI is only supported from the Core i5-8500.

Integrated graphics

All models except for those with an “F” in the type designation have an integrated graphics unit.

See also

Individual evidence

  1. a b Volker Rißka, Wolfgang Andermahr: Intel Coffee Lake in the test: Core i7-8700K, i5-8400, i3-8350K and -8100 vs. Ryzen. ComputerBase, October 6, 2017, accessed December 13, 2017 .
  2. Mark Mantel: Intel Coffee Lake-S: Eight-core is said to have led to incompatibility with Z270 & Co. In: PC Games Hardware Online. Computec Media, October 4, 2017, accessed December 16, 2017 .
  3. Jan-Frederik Timm: BIOS-Mod: Coffee Lake on Z170 board only with problems so far. ComputerBase, December 4, 2017, accessed December 16, 2017 .
  4. Michael Günsch: Chipsets for Coffee Lake: Z370 as an old interim solution for the new Cannon Lake PCH. ComputerBase, August 3, 2017, accessed December 16, 2017 .
  5. 8th Gen (S-platform) Intel® Processor Family Datasheet Vol.1. (PDF) Intel Corporation, October 2017, accessed December 14, 2017 .