Quote Originally Posted by AC3421 View Post
Always leave some breathing room, go for the hx750. These are some of the best PSU's there are though, so you are good either way.
+1

The 920 OCed @ 4ghz and the two 4890 lightly OC'ed to 900 will test the HX 620 to its limit. Will it run? Yes, but just barely.

Perkam