I've got an ATI radeon 7000 64mb agp4x/2x and an NVIDIA geforce440mx 64mb agp8x. My computer is a dell xps b933 and it's got an agp 2.0 hookup. I've got the ATI in right now and it works great. Did a pcpitstop test and it tested at 70fps which measured up favorably with similar models. The only major difference that I can see between these two cards is the agp speed but I can't even utilize that because of my aging computer/motherboard. So Im wondering if I should try the nvidia but I dont want to go thru the hassle of removing all of the ati files unless I'm sure that the geforce will be measurably better. What do you guys think?