Quote Originally Posted by Toffie View Post
520 is more than enough for a 660 Ti & 3570k with any overclock you had in mind, I would however go for the XFX 650 since the price difference isn't colossal and it will secure you for any configuration you had in mind in the future.
I changed the 660 Ti into a HD7950 Windforce x3 (see earlier posts). The 7950 only costs like 30€ more but it comes with a bunch of games - I like that.

I think I'm going with the XFX 650 since it doesn't cost much extra. Thanks a lot for providing info and clearing up stuff about powersupplies!