if you have an amazing GeForce card i.e. GeForce 2 or Ultra or even a GeForce 3, get 3dMark 2001 ...if you have a crap 3d card...well......not crap, but more than say, 2 years old, get 3dmark 2000....these are standars, and no matter what, these will make your computer weep as it pumps out all it can. Ive also tried a prog called Final Reality...not as good, but its smaller to download......as opposed to others...i dunno...cos i think these examples mainly test 3d graphics performance...but they give you FPS etc....you get an overall score at the end and you can compare on a huge online database...anyway, enjoy!