I think that this is the minimum system requirements. I want to be sure that I will have 60 fps at 1920x1080 with highest graphics settings even at very crowded places. What video card should I buy? I think that "GeForce™ 6600, Radeon™ 9600" are unavailable now. Can I buy video card for $100 or I should spend $300? Is there any performance chart available? So I can compare framerate on different video cards?