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Not compatible

Is the Ryzen 7 7700X compatible with B450?

No — not compatible: Ryzen 7 7700X + B450. Socket mismatch: CPU is AM5, motherboard is AM4. Live eBay prices for both.

How they line up

Spec

Ryzen 7 7700X

Ryzen 7 7700X

B450

B450

Socket

AM5

AM4

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Peak power

142W

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Memory

—

DDR4

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Ryzen 7 7700X

B450

Common questions

Socket mismatch: CPU is AM5, motherboard is AM4. The sockets differ, so the CPU will not fit this board.