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Whiskey Lake µarch
General Info
Arch Type	CPU
Designer	Intel
Manufacturer	Intel
Introduction	Q4, 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 Comet Lake
Contemporary
Coffee Lake Amber 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	Stepping
U
	0	0x6	0x8	0xE	0xB
	Family 6 Model 142 Stepping 11
	0	0x6	0x8	0xE	0xC
	Family 6 Model 142 Stepping 12

Meltdown and L1TF are fixed in hardware starting with stepping 11. Stepping 12 adds hardware support for mitigation of Branch Target Injection (Spectre V2) and Speculative Store Bypass.

Architecture

Key changes from Kaby Lake

Speculative execution fixes - see https://www.intel.com/content/www/us/en/architecture-and-technology/engineering-new-protections-into-hardware.html

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.

Overview

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All Whiskey Lake Chips

	List of Whiskey Lake-based Processors
	Main processor										Integrated Graphics
Model	Launched	Price	Family	Cores	Threads	L3$	TDP	Frequency	Turbo	Max Memory	Name	Frequency	Turbo
4205U	January 2019	$ 107.00 € 96.30 £ 86.67 ¥ 11,056.31	Celeron	2	2	2 MiB 2,048 KiB 2,097,152 B 0.00195 GiB	15 W 15,000 mW 0.0201 hp 0.015 kW	1.8 GHz 1,800 MHz 1,800,000 kHz		32 GiB 32,768 MiB 33,554,432 KiB 34,359,738,368 B 0.0313 TiB	UHD Graphics 610	300 MHz 0.3 GHz 300,000 KHz	900 MHz 0.9 GHz 900,000 KHz
4305U	16 April 2019	$ 107.00 € 96.30 £ 86.67 ¥ 11,056.31	Celeron	2	2	2 MiB 2,048 KiB 2,097,152 B 0.00195 GiB	15 W 15,000 mW 0.0201 hp 0.015 kW	2.2 GHz 2,200 MHz 2,200,000 kHz		32 GiB 32,768 MiB 33,554,432 KiB 34,359,738,368 B 0.0313 TiB	UHD Graphics 610	300 MHz 0.3 GHz 300,000 KHz	900 MHz 0.9 GHz 900,000 KHz
i3-8145U	28 August 2018	$ 281.00 € 252.90 £ 227.61 ¥ 29,035.73	Core i3	2	4	4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB	15 W 15,000 mW 0.0201 hp 0.015 kW	2.1 GHz 2,100 MHz 2,100,000 kHz	3.9 GHz 3,900 MHz 3,900,000 kHz	32 GiB 32,768 MiB 33,554,432 KiB 34,359,738,368 B 0.0313 TiB	UHD Graphics 620	300 MHz 0.3 GHz 300,000 KHz	1,000 MHz 1 GHz 1,000,000 KHz
i5-8265U	28 August 2018	$ 297.00 € 267.30 £ 240.57 ¥ 30,689.01	Core i5	4	8	6 MiB 6,144 KiB 6,291,456 B 0.00586 GiB	15 W 15,000 mW 0.0201 hp 0.015 kW	1.6 GHz 1,600 MHz 1,600,000 kHz	3.9 GHz 3,900 MHz 3,900,000 kHz	32 GiB 32,768 MiB 33,554,432 KiB 34,359,738,368 B 0.0313 TiB	UHD Graphics 620	300 MHz 0.3 GHz 300,000 KHz	1,100 MHz 1.1 GHz 1,100,000 KHz
i5-8365U	16 April 2019	$ 297.00 € 267.30 £ 240.57 ¥ 30,689.01	Core i5	4	8	6 MiB 6,144 KiB 6,291,456 B 0.00586 GiB	15 W 15,000 mW 0.0201 hp 0.015 kW	1.6 GHz 1,600 MHz 1,600,000 kHz	4.1 GHz 4,100 MHz 4,100,000 kHz	32 GiB 32,768 MiB 33,554,432 KiB 34,359,738,368 B 0.0313 TiB	UHD Graphics 620	300 MHz 0.3 GHz 300,000 KHz	1,100 MHz 1.1 GHz 1,100,000 KHz
i7-8665U	16 April 2019	$ 409.00 € 368.10 £ 331.29 ¥ 42,261.97	Core i7	4	8	8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB	15 W 15,000 mW 0.0201 hp 0.015 kW	1.9 GHz 1,900 MHz 1,900,000 kHz	4.8 GHz 4,800 MHz 4,800,000 kHz	32 GiB 32,768 MiB 33,554,432 KiB 34,359,738,368 B 0.0313 TiB	UHD Graphics 620	300 MHz 0.3 GHz 300,000 KHz	1,150 MHz 1.15 GHz 1,150,000 KHz
5405U	January 2019	$ 161.00 € 144.90 £ 130.41 ¥ 16,636.13	Pentium Pentium Gold	2	4	2 MiB 2,048 KiB 2,097,152 B 0.00195 GiB	15 W 15,000 mW 0.0201 hp 0.015 kW	2.3 GHz 2,300 MHz 2,300,000 kHz		32 GiB 32,768 MiB 33,554,432 KiB 34,359,738,368 B 0.0313 TiB	UHD Graphics 610	300 MHz 0.3 GHz 300,000 KHz	950 MHz 0.95 GHz 950,000 KHz
Count: 7