Battlefield 4/Games that require tons of VRAM is the point (for me)
Even with 2 x 670FTW's i am stuck to 2x MSAA and bumping up to 4x MSAA uses a little more than 2GB of my VRAM and i run into stuttering gameplay. Move it down to 2x MSAA and my framerates are back to 70-80 on Ultra. using about a couple MB short of my maximum VRAM MB (2042MB)
Also, resolution scale only allows me to increase to 160% with no MSAA (as it eats up all my VRAM) , or 140% and 2x MSAA (i found to only use 1950MB of VRAM).
Anything more; ill run out of VRAM and run into stutters :/
I feel like if you own a card less than a 780; the 2GB VRAM really limits you (on BF4/other games that use tons of VRAM for high quality textures/AA)