SeaSonic FOCUS SGX (2021) 550W vs SeaSonic PRIME Ultra Titanium 1000W

A side-by-side spec comparison of the SeaSonic FOCUS SGX (2021) 550W and the SeaSonic PRIME Ultra Titanium 1000W. 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 FOCUS SGX (2021) 550W and SeaSonic PRIME Ultra Titanium 1000W.
Specification	No image SeaSonic FOCUS SGX (2021) 550W No price data	SeaSonic PRIME Ultra Titanium 1000W $199.00 Winner Buy on Newegg
Modular	full	full
Wattage	550W	1000W
Efficiency	80+ Gold	80+ Titanium
Form Factor	SFX	ATX

Winner: SeaSonic PRIME Ultra Titanium 1000W — driven by Efficiency (80+ Titanium), Wattage (1000W)

SeaSonic FOCUS SGX (2021) 550W

performance points

SeaSonic PRIME Ultra Titanium 1000W

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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