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Not compatible

Is the Core i9-12900K compatible with B650?

No — not compatible: Core i9-12900K + B650. Socket mismatch: CPU is LGA1700, motherboard is AM5. Live eBay prices for both.

How they line up

Spec

Core i9-12900K

Core i9-12900K

B650

B650

Socket

LGA1700

AM5

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Peak power

241W

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Memory

—

DDR5

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Core i9-12900K

B650

Common questions

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