Originally Posted by zo1o
thanks so much for your reply, but like you said, i was thinking about Corsair AX850 but since i might be running dual cards i rather have free watts in case id like to install something else to the rig, about the Vid cards, all i want is pure performance, i like nvidia because of phyxs and they are more green, sounds silly but im in to that stuff lol. amd is more afforable, im not saying that price wood be and option, but when it comes to price/performance im not sure what to get!
Thanks again for your reply, tell me what u think about my toughts, i want the pc for gaming and editing, after effects/photoshop/fotography all that stuff.
For the price of two 680s, you could get three 7970s, which will easily beat two 4gb 680s (and will beat two 780s, as they beat two Titans). Having one card in the PCIe 2 slot and the other two in the PCie 3s won't affect performance even negligibly.
GHz editions aren't really worth it imo, just buy a 7970 and overclock the crap out of it.
As for the PSU, as long as you're not making 1200mhz+ OCs, you'll be fine with a 1000w with three 7970s. The Fatal1ty supports 3-way CFX/SLI.
As for what PSU you should get: I personally recommend Corsair, NZXT, Silverstone, Fractal-Design, especially BeQuiet! (a little pricier than most), Seasonic. If you prefer someone that's fine. Just some advice.
If you're not willing to go three-way SLI/CFX for some reason, I'd still go with two 7970s as long as you're not running a super high resolution setup.