Well for starters Nvidia has a better driver set bar none. VRAM doesn't really mean squat at 1080p as for practically all games 2GB is plenty unless you're playing Skyrim with mods in which you need 4GB which you can get with a 770.
But like I said before they pretty much trade blows depending on the title in question but TPU puts the 680 and 770 slightly ahead of the stock iterations of the 280x and 7970.
Gigabyte R9 280X OC 3 GB Review | techPowerUp
Personally when it comes down to the pipe I think at a hardware level they are pretty even matched but driver optimizations make the Nvidia cards shine ahead. Now when it comes to the 290/290x vs GK110 there is no competition really.
Looks like driver improvements makes the 770 actually be a "better" card than the 680. TDP/temp threshold increase.
"Resolution is just a number." #Ubisoft Origin/Steam
Twitch = pp_mguire Instagram = ppmguire Mechwarrior Online = Thunderson PSN = PP_Mguire
Need Descent and Mechwarrior buddies!
If I helped you, give a thanks! ↓
Access to my Plex PM me.