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Intel

LGA1851

Intel's current socket for Core Ultra

IntelCurrent
Launched
2024
Support through
Memory
DDR5
PCIe
PCIe 5.0
Cooler mount
LGA1700 / LGA1851 compatible
Chipsets
3

LGA1851 is Intel's current socket, introduced with the Core Ultra 200 series. It supports DDR5 and PCIe 5.0 only, and the mounting hole pattern carries over from LGA1700, so previous-generation coolers fit without an adapter.

Its strengths are an on-package NPU for AI workloads and noticeably lower idle power draw than its predecessor. Its weaknesses are a narrower CPU line-up than the mature LGA1700 and, so far, a shorter BIOS track record.

Chipsets

ChipsetsLGA1851
ChipsetTierOverclockingRead more
Z890FlagshipCPU and memoryFull CPU and memory overclocking, the most PCIe 5.0 lanes and Thunderbolt 4 ports.
B860MainstreamMemory onlyMemory overclocking without CPU overclocking. A sensible pick for most builds.
H810BudgetNoneBaseline capability with limited lanes. For office and simple builds.