Intel Ice Lake microarchitecture

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Ice Lake (micro architecture)
Manufacturer Intel
Manufacturing process 10 nm +
base LGA
L1 cache 48 + 32 KB per core
L2 cache 512 KB per core
L3 cache 4/8 MB
predecessor Coffee Lake
Whiskey Lake
Cannon Lake
successor Tiger Lake

The Ice-Lake micro-architecture is the 2nd Intel micro-architecture in the Intel 10-nm manufacturing process. The predecessor was the Cannon Lake , of which only one model was published and of this only samples were delivered to PC manufacturers, the massive start-up problems of the 10 nm processor may have been responsible. This makes Ice-Lake the first 10 nm microarchitecture from Intel that is actually available for sale. Ice Lake replaced Cannon Lake in late 2019 .

Ice-Lake is the first major change since the Intel Skylake microarchitecture , both the manufacturing process (reduction from 14 nm to 10 nm) and the microarchitecture has been massively changed.

Ice Lake is expected to have fixes for Meltdown and Specter .

Together with processors of the Intel Comet Lake microarchitecture , the Ice Lake processors are marketed as "10th Generation Core" processors.

Changes from Skylake microarchitecture:

  • larger L1 cache: from 32 to 48 KB
  • doubled L2 cache to 512 KB
  • larger micro-OP cache (2.25 mOPs)
  • more execution units (from 8 to 10)
  • 4 instead of 3 AGU units
  • 2 instead of 1 store data unit, capacity increased by 50% to 200 storage units
  • improved jump prediction with 50% larger reorder buffer
  • one AVX512 FMA unit or 2 AVX2 units
  • MCM together with the chipset, integration of up to 4 Thunderbolt 3 channels in the chipset
  • The Ice Lake microarchitecture is marketed as a 10th generation Core-i along with 11th generation processor graphics, 4K and 8K support

According to Intel, the IPC values ​​(Instructions per cycle - commands per cycle) are approx. 20% higher than with Skylake, the power consumption of the mobile versions is sometimes significantly higher, which is due to the larger graphics unit (generation 11) and the at least 4 CPU cores. The single-task performance will not be significantly higher than the Coffee Lake Refresh CPUs due to the lower clock frequencies.

Ice Lake does not initially reach the clock frequencies of Coffee Lake Refresh, which is why the first 11 models come from the mobile segment, where maximum clock frequencies do not play a role. In the current roadmaps from Intel (April 2019), only desktop (Comet Lake-H, Rocket-Lake-S) and server CPUs (Cooper-Lake) in 14 nm ++ technology are planned, so that the Ice Lake Y and U variants will remain the only 10 nm products from Intel for the foreseeable future.

Individual evidence

  1. Intel Officially Reveals Post-8th Generation Core Architecture Code Name: Ice Lake, Built on 10nm + , AnandTech . 15th August 2017. 
  2. Intel: 10 nanometer processors not until 2019 . April 27, 2018.
  3. Intel's next generation chip plans: Ice Lake and a slow 10nm transition , Ars Technica . 15th August 2017. 
  4. Dave James: Intel Coffee Lake - 8th Gen Core> 30% faster than Kaby Lake and here by the holidays . May 30, 2017.
  5. Intel releases its Ice Lake & Tiger Lake family, 10nm for 2018 and 2019 . January 21, 2016. Retrieved June 3, 2016.
  6. What's the Name of Intel's Third 10-Nanometer Chip? - The Motley Fool . January 18, 2016. Retrieved June 3, 2016.
  7. Volker Rißka: Overview of Intel Ice Lake. Retrieved March 14, 2020 .
  8. Intel Sunny Cove Core To Deliver A Major Improvement In Single-Thread Performance, Bigger Improvements To Follow. In: WikiChip Fuse. May 28, 2019, Retrieved March 14, 2020 (American English).
  9. Currently only mobile processors are announced for the end of the year. At least a 14 nm ++ generation (Comet Lake) has been announced for desktop.
  10. Peter Bright: Intel: Meltdown, Specter silicon fixes coming 2018; 3D XPoint RAM, not so much . Ars Technica. January 28, 2018.
  11. Ian Cutress: Power Stamp Alliance Exposes Ice Lake Xeon Details: LGA4189 and 8-Channel Memory. In: Trending Topics, April 9, 2018. From, accessed January 11, 2019.
  12. ^ Ice Lake Platform: Amazing Performance and Responsiveness. In: Resource & Design Center. From, accessed January 11, 2019.
  13. Intel Takes Steps to Enable Thunderbolt 3 Everywhere, Releases Protocol. Retrieved March 14, 2020 (American English).
  14. Intel Ice Lake 10nm CPU Benchmark Leak Shows More Cache, Higher Performance (en-us) . In: HotHardware , October 23, 2018. Retrieved November 9, 2018. 
  15. Michael Günsch: Intel Roadmaps: By 2022 there is no 10 nm CPU for desktop in sight. Retrieved March 14, 2020 .
  16. ^ Christof Windeck: Processor timetables from AMD and Intel. Retrieved March 14, 2020 .