Well its all the graphic's card. It sucks! I play with a 2,0ghz x2 and a 8800GT and can put all options on the high. Without lags! Better you change your graphic card .
No its not your processor. Its your Graphic card! It sucks! Its to slow! Why dont you spend 30€/50$ more toa 8800GT I can understand you!
Your processor is ok! Mine is much slower then yours and the game runs fine on the 8800GT !
an 8500 is a budget card so wat do u expect i had a 8500 back a while ago i got good fps in css but not in cod4 but now i rape in cod4 with my 9800 gx2 u should upgrade tbh