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Comet Lake - Microarchitectures - Intel
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Comet Lake µarch
General Info
Arch TypeCPU
DesignerIntel
ManufacturerIntel
Process14 nm
Core Configs4
Pipeline
TypeSuperscalar, Superpipeline
OoOEYes
SpeculativeYes
Reg RenamingYes
Stages14-19
Decode5-way
Instructions
ISAx86-64
ExtensionsMOVBE, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AVX, AVX2, AES, PCLMUL, FSGSBASE, RDRND, FMA3, F16C, BMI, BMI2, VT-x, VT-d, TXT, TSX, RDSEED, ADCX, PREFETCHW, CLFLUSHOPT, XSAVE, SGX, MPX
Cache
L1I Cache32 KiB/core
8-way set associative
L1D Cache32 KiB/core
8-way set associative
L2 Cache256 KiB/core
4-way set associative
L3 Cache2 MiB/core
Up to 16-way set associative
L4 Cache128 MiB/package
on Iris Pro GPUs only
Cores
Core NamesComet Lake U,
Comet Lake S
Succession
Contemporary
Amber Lake

Comet Lake (CML) is a planned microarchitecture designed by Intel as a successor to Coffee Lake and Whiskey Lake for desktops, high-performance mobile devices, and ultra-low power mobile devices.


Symbol version future.svg Preliminary Data! Information presented in this article deal with future products, data, features, and specifications that have yet to be finalized, announced, or released. Information may be incomplete and can change by final release.


Codenames[edit]

Core Abbrev Description Graphics Target
Comet Lake S CML-S Mainstream performance GT2 Desktop performance to value, AiOs, and minis
Comet Lake U CML-U Ultra-low power GT2 Light notebooks, portable All-in-Ones (AiOs), Minis, and conference room

Brands[edit]

Intel released Coffee Lake under 3 main brand families:

Logo Family General Description Differentiating Features
Cores HT AVX AVX2 TBT ECC
core i3 logo (2015).png Core i3 Low-end Performance 6
core i5 logo (2015).png Core i5 Mid-range Performance 8
core i7 logo (2015).png Core i7 High-end Performance 8/16

Release Dates[edit]

Comet Lake is expected to be released in mid-2019.

Compatibility[edit]

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Compiler support[edit]

Compiler Arch-Specific Arch-Favorable
ICC -march=skylake -mtune=skylake
GCC -march=skylake -mtune=skylake
LLVM -march=skylake -mtune=skylake
Visual Studio /arch:AVX2 /tune:skylake

CPUID[edit]

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Architecture[edit]

Key changes from Coffee Lake[edit]

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