I have a 7870 Myst edition right now clocked at 1200 core 1500 memory which is a beast for 1080p. I am now looking to upgrade to a 1440p monitor. I've read tons of forums and there seems to be a varying opinion on whether 2gb vram is enough for games on a single monitor at 1440p. I was thinking about buying another Myst for crossfire but wanted to ask people who have ACTUAL relevant experience with 2gb cards at 1440p. Anti-aliasing aside, would 2 gb be enough?
I have a GTX 670 with 2GB VRAM and game at 1440p with some reduced details at very decent frame rates. I have heard numerous times the "rumor" that the higher resolutions demands more than 2GB VRAM but whenever I try to look up actual numbers there seems to be little to no difference between similar cards at 1440p with 2 v 4 GB VRAM.
As evidenced in this review of a GTX670 4GB vs GTX670 2GB there is actually no discernible difference even at 1440p with the 2GB card actually performing faster in some test.