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SeaSonic M12II 520W vs SeaSonic X 660W

A side-by-side spec comparison of the SeaSonic M12II 520W and the SeaSonic X 660W. We line up every specification, highlight the winner of each, and tally an overall verdict so you can decide which power supply is right for your build.

Side-by-side specification comparison of SeaSonic M12II 520W and SeaSonic X 660W.
Specification
SeaSonic X 660W - Power Supply
SeaSonic X 660W

No price data

Modularfullfull
Wattage520W660W
Efficiency80+ Bronze80+ Gold
Form FactorATXATX

SeaSonic M12II 520W

0

specs won

SeaSonic X 660W

0

specs won

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