is there a big different in performance for Asus 8800GT 1GB over the 512MB version?? coz both have same memory bus and core clock.. My roomate want to buy new graphic card and he want to buy nvidia 8800GT. he saw the 2 card i mention earlier and he ask me for suggestion since the cost for the 1GB version only $80 above the 8800GT 512MB. i said im not sure myself... so im hoping people in tomhardware can help me out on this..