I bought a gigabyte 760 4gb back in august 27 2013. I acquired another one from Frys 6/27/2014. Noticed one was different from the looks . Checked the cards and one is a 2.1 rev and the other 2.0. . Does this mean one is better than the other? I updated both drivers for them no more display issues and they work great now. They both are 4gig editions. But I know noticed that the lower card gets really hot up to 80c and the upper card get 65c. I have a cooler master haf xm case. A 140 aerocool fan on the side (which hits both cards). Corsair h100i up top. I'm going to switch the cards positions to see what happens when I get some more time.