I have my 7600GT OC from 590/1600 to 630/1700, and I just noticed that was for the Performance (3D) from the drop down menu in manual overclocking (coolbits). Do I have to overclock the Standard (2D), because it's at 590/1700.
nah man, standard 2d wont make any noticeable difference cause its for stuff like running windows etc, where an increase in performance wont be detected. You'd just be running your vgu hotter for no reason