LGA 1851 (codename Socket V1) is a

land grid array The land grid array (LGA) is a type of surface-mount packaging for integrated circuits (ICs) that is notable for having the pins on the socket (when a socket is used) — as opposed to pins on the integrated circuit, known as a '' pin grid array' ...

CPU socket designed by

Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California, and Delaware General Corporation Law, incorporated in Delaware. Intel designs, manufactures, and sells computer compo ...

for Meteor Lake-PS and Arrow Lake-S desktop processors, released on October 24, 2024. The number of contacts has increased, from 1700 (for LGA 1700) to 1851. It uses the same dimensions and cooler mounting hole spacing as

LGA 1700 LGA 1700 (Socket V) is a zero insertion force flip-chip land grid array (LGA) socket, compatible with Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California, ...

, ensuring continued CPU cooler compatibility. It offers 20 PCIe 5.0 lanes (x16 for the expansion cards and x4 for storage) and an additional 4 PCIe 4.0 lanes for storage. The available PCIe lanes for the expansion cards can now be bifurcated to three devices (x8, x4, x4) instead of two, in case of LGA 1700. Similar to AMD's AM5 socket, it is exclusively on

DDR5 SDRAM Double Data Rate 5 Synchronous Dynamic Random-Access Memory (DDR5 SDRAM) is a type of synchronous dynamic random-access memory. Compared to its predecessor DDR4 SDRAM, DDR5 was planned to reduce power consumption, while doubling bandwidth. Th ...

, dropping support for DDR4 unlike its predecessor (LGA 1700), marking the end of mainstream DDR4 after 10 years.

Arrow Lake chipsets (800 series)

Notes

References

Intel CPU sockets {{compu-hardware-stub