I have the GeForce 6200 OC PCI running on a Pentium 4 280 DUO processor and I am loving it. You shouldn't have a problem with the frame rates. My card is 256 MB DDR and tends to run better in the windows opt ( operating system XP Professional). Just play around abit with your sim settings and you will find the optimum setting. What the hey anyway, computing and RC is about trial and error any hooo. Good luck.