Same card as OP: Maxed general settings other than MSAA (0), max on all 3 sliders (traffic, draw..), nothing special in NVCP (defaults), nv GTA driver. Never below 60fps and around 3.2-3.4GB. I'm not sure what you're doing OP.... lowest settings do not use near 2gb let alone over. Normal/High settings on my 6950 ran around 1.7-1.9gb. Next time I boot it up I'll take some screenshots. EDIT: OP do the same.
5/13/15 at 8:03pm