GagaTroll :
Thanks guys
but i heard skyrim in mods uses more then 2gb (or other games like crysis 3)
so will that be a problem
This is a tricky one because it all depends on resolution / Game demand, as you pointed out 2 GB on a 1080p should be enough in today's market but if your a performance purest and you have the money then its your wallet bro.
What I'd be more inclined to ask is does the GTX 770 actually have the bandwidth needed to make use of the 4 GB in the first place?
That's a question for the forum or some research because I do know AMD seem to put more emphasis on bandwidth capability than Nvidia at the moment.