Silverstone SFX 300W vs Silverstone SFX 450W

A side-by-side spec comparison of the Silverstone SFX 300W and the Silverstone SFX 450W. 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 Silverstone SFX 300W and Silverstone SFX 450W.
Specification	Silverstone SFX 300W No price data	Silverstone SFX 450W $91.88 Winner Buy on Amazon
Modular	non-modular	non-modular
Wattage	300W	450W
Efficiency	80+ Bronze	80+ Bronze
Form Factor	SFX	SFX

Winner: Silverstone SFX 450W — driven by Wattage (450W)

Silverstone SFX 300W

performance points

Silverstone SFX 450W

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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