I will be running my three screens in surround (resolution 3510x1920 bezel corrected)
I am currently running my 6990 on this setup and am using insane amounts of vram according to afterburner, each gpu on the 6990 has 2gb available, and playing tribes ascend, fallout new vegas and skyrim are all drawing 1900MB +
Now these arent really demanding games, but somehow im using up heaps of vram, and the extra 2gb would be handy for futureproofing etc.
What do you guys think, the FTW is $419 and the 4gb is $485. the price difference doesnt really bother me, as the reference 670 is over %500 in australia ATM