The computer I have runs games like csgo and gary's mod terribly and after some poking around a few people told me that it was because I have a bad graphics card, I simply want to know what kind of graphics cards my computer can use. I dont want to buy a whole new comp, just replace its graphics card. Its a dell Inspiron 560 Pentium(R) Dual-Core CPU E5700 3.00GHz. 4.00 GB of Installed RAM, 64-bit operating system. If you need to know more about my computer please ask