my computer orignly came with a 8800 Gts. but was constnly crashing. my fiancee got mes a ati radeon hd 4850 wich is instaled now. my brother gaves mes a 9800 GTX for xmas. been siting on the shelf. only play one game. its caled secpond life its a online 3d world. u can only play it on broad band. mes haveit instaled the 9800gtx becase was hard to install the radion. but not shure wich would be beter to use.