Apples to oranges when it comes to 2560x1600 and eyefinty.
Eyefinity has issues all of its own which can effect smooth gameplay which sometimes can be down to lack of vram and sometimes not depending on the game.
Regardless of micro stuttering or not on quadfire systems, running out of Vram as well would certainly not help.
I know a quadfire 5970 user who has sold up because of BF3 and only having 1GB Vram 2560x and gone 2GB 6xxx series even though the timing could not be worse, other quadfire 5970 and tri fire 5970+5870 users have settled for less AA and other settings, its only the 4GB 5970 and 2GB 5870 users who are getting better results most of the time.
There is obviously some benefit for caching as much as possible in Vram or we would not hear some people with 1GB/1.25GB saying that they seen improvements going from 4GB to 8GB system ram so there much be some hard drive paging go on at times, couple that with maybe having SSD as well may levitate even more the lack of Vram, there is a lot of possibilities here.
I run Quadfdire 5970 4GB cards 8GB Ram and SSD. 2560x1600
64 player map
As far as 2xAA in BF3 its not good enough for my tastes, even the 4Xaa is not good enough and i need at least low post process as well , any more post pro looks to soft and blurry to me, HABO is to dark in my opinion, pity there is no 8xAA option.
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on their face!
on their face!
