Sunius, that's a horrible chart to be showing people, it's from 2006......and half those models don't even exist anymore.
Things change. OCZ now has aquired PCP&C and make much better units. XFX Core should be at the top of that list in Tier 1 not Tier 3, they are all built by Seasonic now.
None of those units even meet today's basic 80+ efficiency rating because that chart is 6 years old.
That's just a horribly outdated list for anyone to be posting in 2012.