Hey all...was hoping to get input from anyone using 670/680 to run 2560/1600+. I am currently using a reference 680 to run a U3011 and am considering adding another but am concernened that the 2gb VRAM would be a significantly limiting factor (I've hit 2gb VRAM usage a couple times even with only 2xMSAA in BF3). Ideally with two 680s I could stretch game across my two flanking 2007FPs as well (PLP). However, as previously noted, I am worried that the VRAM will be the limiting factor, not the GPU horsepower. Can anyone with 2 GTX680 2gb cards running at 2560/1600+ comment...is the VRAM a significantly limiting factor?
Hey there mate. The vram debate always comes up in this or other topics under 1440p or 1600p and that is normal.
Currently unless you are using lots of texture packs in skyrim or Crysis2 than the extra vram does not really give much benefit. I have a 4GB GPU and I can see as much as 2300 GB of Vram usage in BF3, but it uses so much because I have a lot to spare. If a GPU has only 2GB of vram, than BF3 lingers around 1800-1900 as far as people tell.
But one can never know what the future might bring. Right now the 4gb MIGHT be a luxury but if you are to keep these GPUs for 2-3 years than 4GB might be a better option to go.
Noone can tell if your 2GB vram will be a bottleneck in Crysis 3 or Battlefield 4 or any other game.
However for now, 2GB is perfectly fine.