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SeaSonic M12II 650W vs SeaSonic PRIME Ultra Titanium 850W

A side-by-side spec comparison of the SeaSonic M12II 650W and the SeaSonic PRIME Ultra Titanium 850W. We line up every specification and score the ones that matter most in this category — weighted, not a raw count of specs won — to reach an overall verdict so you can decide which power supply is right for your build.

Side-by-side specification comparison of SeaSonic M12II 650W and SeaSonic PRIME Ultra Titanium 850W.
Specification
SeaSonic M12II 650W - Power Supply
SeaSonic M12II 650W

No price data

Modularsemifull
Wattage650W850W
Efficiency80+ Bronze80+ Titanium
Form FactorATXATX

Winner: SeaSonic PRIME Ultra Titanium 850W — driven by Efficiency (80+ Titanium), Wattage (850W), Modular (full)

SeaSonic M12II 650W

0

performance points

SeaSonic PRIME Ultra Titanium 850W

6

performance points

Winner is scored by weighting the specs that matter most in this category (not a raw count of specs won).

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