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Last reviewed: August 15, 2026
B860 is Intel’s most interesting mainstream chipset for the current LGA1851 desktop platform.
It supports DDR5 memory overclocking and gives motherboard manufacturers enough high-speed I/O to build boards with PCIe 5.0 graphics, Gen5 NVMe, Thunderbolt 4, Wi-Fi 7 and fast Ethernet without automatically moving into Z890 pricing.
What B860 does not give you is Intel’s official IA/CPU and BCLK overclocking support.
That makes the buying decision straightforward: if you want a well-equipped Core Ultra system but do not need Z890 CPU tuning, B860 is usually where I would start.