I'm currently looking into upgrading my graphics card that I have. It's an AMD Radeon HD 7570 that came with my Dell XPS 8500. If you want to see more specs, I can either add them later as I am on mobile or you can look them up. My budget is ~$400 and I want to buy a card that can run most games on high or ultra. Ex. Skyrim. The lowest price and best performance would be the best. Question, if I'm wrong I'm gonna sound really stupid, can you run two cards at once? Or would it be better just to buy a single better one?