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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
Coffee Lake Icelake
Contemporary
Cannon Lake

Whiskey Lake (WHL) is a microarchitecture designed by Intel as a successor to Coffee Lake for mobile devices. Whiskey Lake is expected to launch in the third quarter of 2018 and is manufactured on Intel's mature 14 nm process.

Codenames

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 will be fabricated on "14nm+++", Intel's 4th generation improved 14 nm 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	0x9	0xE
	Family 6 Model 158
S/H	0	0x6	0x?	0x?
	Family 6 Model ???

Architecture

Key changes from Coffee Lake

• Enhanced "14nm+++" process results in higher turbo frequencies

Overview

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