Whiskey Lake (microarchitecture)

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Whiskey Lake
General Info
LaunchedAugust 28, 2018; 19 months ago (August 28, 2018)
Cache
L1 cache64 KiB per core
L2 cache256 KiB per core
L3 cacheUp to 8 MiB, shared
Architecture and classification
Architecturex86-64
Instructionsx86-64, Intel 64
Extensions
Physical specifications
Transistors
Cores
  • 2–4
Socket(s)
  • BGA1528
Products, models, variants
Brand name(s)
    • Core i3
    • Core i5
    • Core i7
History
PredecessorMobile: Kaby Lake Refresh (2nd optimization)
SuccessorIce Lake (Architecture)
Comet Lake (4th optimization)

Whiskey Lake is Intel's codename for the third 14 nm Skylake process-refinement, following Kaby Lake Refresh and Coffee Lake. Intel announced low power mobile Whiskey Lake CPUs availability on August 28, 2018.[1][2] It has not yet been advertised whether this CPU architecture contains hardware mitigations for Meltdown/Spectre class vulnerabilities—various sources contain conflicting information.[3][4][2][5] Unofficially it was announced that Whiskey Lake has hardware mitigations against Meltdown and L1TF while Spectre V2 requires software mitigations as well as microcode/firmware update.[6][7][8][9]

Architecture changes compared to Kaby Lake Refresh[edit]

  • 14++ nm process, same as Coffee Lake
  • Increased turbo clocks (300–600 MHz)
  • 14 nm PCH
  • Native USB 3.1 gen 2 support (10 Gbit/s)
  • Integrated Wi-Fi 802.11ac 160 MHz / WiFi 5 and Bluetooth 5.0
  • Intel Optane Memory support

List of Whiskey Lake CPUs[edit]

Mobile processors[edit]

TDP for these CPUs is 15 W, but can be configurable.

Core i5-8365U and i7-8665U support Intel vPro Technology

Pentium Gold and Celeron CPUs lack AVX2 support.

Processor

branding

Model Cores

(threads)

CPU

clock rate

Turbo clock GHz

Num of cores

GPU Max GPU

clock rate

L3

cache

cTDP Memory Price
1 2 4 Up Down
Core i7 8665U 4 (8) 1.9 GHz 4.8 UHD
620
1150 MHz 8 MiB 25 W 10 W DDR4-2400

LPDDR3-2133

$409
8565U 1.8 GHz 4.6 4.5 4.1 $409
Core i5 8365U 1.6 GHz 4.1 1100 MHz 6 MiB $297
8265U 3.9 3.9 3.7 $297
Core i3 8145U 2 (4) 2.1 GHz 3.9 3.7 N/A 1000 MHz 4 MiB $281
Pentium Gold 5405U 2.3 GHz N/A UHD
610
950 MHz 2 MiB - 12.5 W DDR4-2133

LPDDR3-1866

$161
Celeron 4205U 2 (2) 1.8 GHz 900 MHz $107

References[edit]

  1. ^ "New 8th Gen Intel Core Processors Optimize Connectivity, Great Performance, Battery Life for Laptops | Intel Newsroom". Intel Newsroom. Retrieved 2018-08-28.
  2. ^ a b Cutress, Ian. "Intel Launches Whiskey Lake-U and Amber Lake-Y: New MacBook CPUs?". Retrieved 2018-08-28.
  3. ^ "Intel launches Whiskey Lake-U and Amber Lake-Y CPUs with focus on enhanced mobile connectivity". Notebookcheck. Retrieved 2018-08-28.
  4. ^ "Intel launches Whiskey and Amber Lakes: Kaby Lake with better Wi-Fi, USB". Ars Technica. Retrieved 2018-08-28.
  5. ^ "Intel Launches Whiskey Lake And Amber Lake CPUs for Laptops". Tom's Hardware. 2018-08-28. Retrieved 2018-08-28.
  6. ^ "Ashraf Eassa on Twitter". Twitter. Retrieved 2018-08-29.
  7. ^ "Ian Cutress on Twitter". Twitter. Retrieved 2018-08-29.
  8. ^ https://www.anandtech.com/show/13301/spectre-and-meltdown-in-hardware-intel-clarifies-whiskey-lake-and-amber-lake
  9. ^ https://www.tomshardware.com/news/whiskey-lake-mitigations-in-silicon-intel,37723.html