There's no clear definition for the ultimate PC, which means it is up to you to figure it out and submit your build for the most ultimate machine you can dream up. There is only 1 rule... there are no rules.
Updating your graphics card is like giving your old PC a good kick in the pants. It can make for a smoother gaming system overall, as well as keep the setup from running too hard and too hot. ASUS is heating up the graphics card market with its latest Radeon HD7790-DC2OC-1GD5 graphics card.