Thanks eric93se, that is exactly what I have, AMD quad4 9750 phenom, 8GB RAM, 750GB HDD, Windows 7 64bit OS. I don't need, nor can I afford a top of the line card, I am not a gamer. I thought I could find something between $50 and $100 that would serve my purpose. I don't do any online gaming, but I would like the game to operate without slowing down like my Civilization 4 does now. I haven't been able to sort out which card has better performance, the numbers on them don't seem to mean anything. nVidia GeForce 9100 looks impressive, but doesn't tell anything about its performance. I just want to be able to sort out which ones would be useful to me.