XFX ProSeries 550W vs Seasonic S12II 520W
- Thread starter samgamer
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jimthenagual
Splendid
- Apr 8, 2012
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In this case, I'd say go XFX, as it has a 5 year warranty compared to the S12II's 3 year. They are VERY similar in quality (both are actually made by Seasonic).
Dark Lord of Tech
Retired Moderator
- Aug 18, 2009
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XFX ProSeries 550W < Go with the this one it has more amps on the 12v rail.
520 has 40 amps , 550 has 44 amps.
The XFX 550 is the better of the 2.
520 has 40 amps , 550 has 44 amps.
The XFX 550 is the better of the 2.
jimthenagual
Splendid
- Apr 8, 2012
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It such a close call on these two, you can't go wrong with either.
I'd go with the Seasonic just because of jonnyguru's reviews. They are probably the top PSU testing review site.
XFX Pro 9/10
Just as with the 450W version; this unit is 80 Plus Bronze, which is good, but not the best we've seen lately. The ripple and noise suppression was pretty good too. But we once again see unusual +12V regulation that goes up when the PSU is taxed. At least this time, the voltage remained in specification at all times (although barely during the first crossload test)
S12II Seasonic 9.7/10
the scoring here isn't going to be that hard to come up with for me. This unit does 80 Plus Bronze down to load levels you'd probably never see in real life, crossloads exceptionally well for a group regulated design, and has almost no ripple and noise to speak of. While I don't know that this unit deserves the scoring of a much more expensive independently regulated design, I also cannot punish a group design just for being a group design. Group designs aren't supposed to do well in crossload testing. And yet this one did. A half point off for voltage regulation that slipped outside the 1% number on the progressive tests, and that is all
But again, you really can't go wrong with either. They are both exceptionally good.
I'd go with the Seasonic just because of jonnyguru's reviews. They are probably the top PSU testing review site.
XFX Pro 9/10
Just as with the 450W version; this unit is 80 Plus Bronze, which is good, but not the best we've seen lately. The ripple and noise suppression was pretty good too. But we once again see unusual +12V regulation that goes up when the PSU is taxed. At least this time, the voltage remained in specification at all times (although barely during the first crossload test)
S12II Seasonic 9.7/10
the scoring here isn't going to be that hard to come up with for me. This unit does 80 Plus Bronze down to load levels you'd probably never see in real life, crossloads exceptionally well for a group regulated design, and has almost no ripple and noise to speak of. While I don't know that this unit deserves the scoring of a much more expensive independently regulated design, I also cannot punish a group design just for being a group design. Group designs aren't supposed to do well in crossload testing. And yet this one did. A half point off for voltage regulation that slipped outside the 1% number on the progressive tests, and that is all
But again, you really can't go wrong with either. They are both exceptionally good.
Dark Lord of Tech
Retired Moderator
- Aug 18, 2009
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