LGA 1851 explained
LGA 1851 |
Designed-By: | Intel |
Formfactors: | Flip-chip |
Contacts: | 1851 |
Protocol: | PCI Express |
Dimensions: | 37.5 mm × 45 mm 1,687.5mm2 |
Processors: | Meteor Lake-PS Arrow Lake Arrow Lake-S Refresh |
Predecessor: | LGA 1700 |
LGA 1851 (codename Socket V1) is a land grid array CPU socket designed by Intel for Meteor Lake-PS, Arrow Lake-S and Arrow Lake-S Refresh desktop processors, estimated to release in 2024.[1]
The LGA 1851 socket uses the same dimensions and cooler hole spacing as LGA 1700, making LGA 1700 coolers compatible with the newer socket. The number of contacts has increased, from 1700 (for LGA 1700) to 1851 contacts.[2]
It offers 20 PCIe 5.0 lanes (x16 for the video card and x4 for storage) and an additional 4 PCIe 4.0 lanes for storage. The video card lanes can now be bifurcated to three devices (x8, x4, x4) instead of two for LGA 1700. It only supports DDR5 SDRAM, with no option for DDR4 SDRAM like on previous generation (LGA 1700).[3] [4] [5] [6]
Notes and References
- Web site: Intel CPU launch plans: Refreshes, Meteor Lake and Arrow Lake . June 22, 2023 . June 29, 2023 . June 29, 2023 . https://web.archive.org/web/20230629123744/https://www.hwcooling.net/en/intel-cpu-launch-plans-refreshes-meteor-lake-and-arrow-lake/ . live.
- Web site: Norem . Josh . June 23, 2023 . Intel Confirms Raptor Lake Refresh . ExtremeTech . en-US . June 29, 2023 . June 29, 2023 . https://web.archive.org/web/20230629123742/https://www.extremetech.com/computing/intel-confirms-raptor-lake-refresh . live.
- Web site: Klotz . Aaron . September 21, 2023 . Intel's LGA 1851 Socket For 15th Gen Arrow Lake CPUs Detailed In 3D Schematics . HotHardware . en-US . December 24, 2023 . 24 December 2023 . https://web.archive.org/web/20231224154229/https://hothardware.com/news/lga-1851-for-15th-gen-arrow-lake-detailed-in-3d-schematics . live.
- Web site: Intel LGA-1851 "Arrow Lake" Socket Detailed . TechPowerUp . en-US . September 21, 2023 . December 24, 2023 . September 23, 2023 . https://web.archive.org/web/20230923152240/https://www.techpowerup.com/313873/intel-lga-1851-arrow-lake-socket-detailed . live.
- Web site: Norem . Josh . July 18, 2023 . Intel's Upcoming LGA 1851 Socket Details Revealed . ExtremeTech . en-US . December 24, 2023 . December 24, 2023 . https://web.archive.org/web/20231224155231/https://www.extremetech.com/computing/intels-upcoming-lga-1851-socket-details-revealed . live.
- Web site: Intel Socket LGA1851 Only Supports DDR5 Memory . TechPowerUp . en-US . August 21, 2023 . November 26, 2023 . November 26, 2023 . https://web.archive.org/web/20231126005810/https://www.techpowerup.com/312628/intel-socket-lga1851-only-supports-ddr5-memory . live.