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Whiskey Lake µarch
General Info
Arch Type	CPU
Designer	Intel
Manufacturer	Intel
Introduction	July, 2018
Process	14 nm
Core Configs	4
Pipeline
OoOE	Yes
Speculative	Yes
Reg Renaming	Yes
Stages	14-19
Decode	5-way
Instructions
ISA	x86-64
Extensions	MOVBE, 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 Cache	32 KiB/core 8-way set associative
L1D Cache	32 KiB/core 8-way set associative
L2 Cache	256 KiB/core 4-way set associative
L3 Cache	2 MiB/core Up to 16-way set associative
Cores
Core Names	Whiskey Lake U
Succession
Kaby Lake Ice Lake
Contemporary
Coffee Lake Cannon Lake

Whiskey Lake (WHL) is a microarchitecture designed by Intel as a successor to Kaby Lake for ultra-low power mobile devices, launched concurrently with Coffee Lake and Amber Lake.

Codenames

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.

Core	Abbrev	Description	Graphics	Target
Whiskey Lake U	WHL-U	Ultra-low power	GT2	Light notebooks, portable All-in-Ones (AiOs), Minis, and conference room

Brands

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Release Dates

Whiskey Lake processors are expected to be introduced in the summer of 2018.

Technology

Whiskey Lake is fabricated on 3rd generation improved 14++ process.

Compatibility

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Compiler support

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

Core	Extended Family	Family	Extended Model	Model
U	0	0x6	?	?
	Family 6 Model ?

Architecture

Key changes from Kaby Lake

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.

• Package and pin-compatible with Cannon Lake U
• Die from Coffee Lake U and Cannon Point PCH

Overview

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