Cyonic AU-450X 450W vs Cyonic AU-550X 550W

A side-by-side spec comparison of the Cyonic AU-450X 450W and the Cyonic AU-550X 550W. 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 Cyonic AU-450X 450W and Cyonic AU-550X 550W.
Specification	No image Cyonic AU-450X 450W No price data	No image Cyonic AU-550X 550W No price data Winner
Modular	full	full
Wattage	450W	550W
Efficiency	80+ Gold	80+ Gold
Form Factor	ATX	ATX

Winner: Cyonic AU-550X 550W — driven by Wattage (550W)

Cyonic AU-450X 450W

performance points

Cyonic AU-550X 550W

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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