MY comrades, whos suggestions below are indeed the safe and wise course, have urged you to err on the side of caution.
However, download the return to castle wolfenstein demo.....turn on all effects to maximum....then turn on anti ailasing and anisotropic filtering.......and after you are finished crying at your 400 dollar videocards inadequacy ;-)....get a gf3 ti500.
"The Cash Left In My Pocket,The BEST Benchmark"
No Overclock+stock hsf=GOOD!