Whiskey Lake (microarchitecture)
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]
General Info | |
---|---|
Launched | August 28, 2018 |
Cache | |
L1 cache | 64 KiB per core |
L2 cache | 256 KiB per core |
L3 cache | Up to 8 MiB, shared |
Architecture and classification | |
Architecture | x86-64 |
Instructions | x86-64, Intel 64 |
Extensions | |
Physical specifications | |
Transistors |
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Cores |
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Socket(s) |
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Products, models, variants | |
Brand name(s) |
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History | |
Predecessor | Mobile: Kaby Lake Refresh (2nd optimization) |
Successor | Ice Lake (Architecture) Comet Lake (4th optimization) |
Architecture changes compared to Kaby Lake Refresh
- 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
Mobile processors
TDP for these CPUs is 15 W, but is 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 | 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
- "New 8th Gen Intel Core Processors Optimize Connectivity, Great Performance, Battery Life for Laptops | Intel Newsroom". Intel Newsroom. Retrieved 2018-08-28.
- Cutress, Ian. "Intel Launches Whiskey Lake-U and Amber Lake-Y: New MacBook CPUs?". Retrieved 2018-08-28.
- "Intel launches Whiskey Lake-U and Amber Lake-Y CPUs with focus on enhanced mobile connectivity". Notebookcheck. Retrieved 2018-08-28.
- "Intel launches Whiskey and Amber Lakes: Kaby Lake with better Wi-Fi, USB". Ars Technica. Retrieved 2018-08-28.
- "Intel Launches Whiskey Lake And Amber Lake CPUs for Laptops". Tom's Hardware. 2018-08-28. Retrieved 2018-08-28.
- "Ashraf Eassa on Twitter". Twitter. Retrieved 2018-08-29.
- "Ian Cutress on Twitter". Twitter. Retrieved 2018-08-29.
- https://www.anandtech.com/show/13301/spectre-and-meltdown-in-hardware-intel-clarifies-whiskey-lake-and-amber-lake
- https://www.tomshardware.com/news/whiskey-lake-mitigations-in-silicon-intel,37723.html