Hi
You should be fine as long as you get the 970' also if you can over lock to 3.6 or 3.7 thAt would help, I have i970 at 3.7 12gbddr3 and 970' runs rest on high on well on uber
---------- Updated at 10:05 PM ----------
This forum won't let me edit so I'm reposting
What I meant to say is you should be ok, try and over lock to 3.6 or 3.7 if you can, get the 970, I have i920 over locked from 2.6 to 3.7 ,12gbddr and 970' it runs great on high and I play on uber without problem, I do not get 60 fps on uber of course but plays great. I also have a 27 inch monitor and play at 2560 *1440