I'm using the EVGA SuperNOVA 1600 G2 since I'm on 120v. I don't have too much experience with different PSUs, the only other one I own is a little 650W 80+ Bronze. I will say though that I am very pleased with this thing. It's on the pricey end (I think $400 retail) but has been working great - not a single issue, relatively easy to set up. I'm also overclocked to 681 so she's pulling ~1520W at the wall. The ONLY complaint I have about it is that the plug from the wall to the PSU fits kind of loose in the PSU. Doesn't clip in, and wiggles around a lot. If you don't move the PSU it's no problem, but it has come unplugged in the past when I was moving my setup around.