Decent. I'd get the GTX 780 6GB to help future proof if you ever want to go multi-monitor in sli down the road it will be much better plus games like Watchdogs use a ton of vram (well over 4GB at times; poorly coded etc.) and it will ensure constant smoothness in game. Also your psu could be better ie a quality 750W or better I'd recommend perhaps even an AX860 or so to have a solid build that can handle sli if you ever want to down the road. As is you are spending nearly $2,000 so an extra $100 or $200 in the big picture to have your build more how you'd prefer anyhow for the long run isn't too big a price bump. You've selected very good components overall and as is you are going to be pretty happy anyways. Have fun whatever you...