Not compatible

Is the Core i5-12400F compatible with X670?

No — not compatible: Core i5-12400F + X670. Socket mismatch: CPU is LGA1700, motherboard is AM5. Live eBay prices for both.

How they line up

Spec
Core i5-12400F Core i5-12400F
X670 X670
Socket
LGA1700
AM5
Peak power
117W
Memory
DDR5

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Core i5-12400F
X670

Common questions

Socket mismatch: CPU is LGA1700, motherboard is AM5. The sockets differ, so the CPU will not fit this board.