Hello, i'm new to overclocking, recently i OC my cpu and now im thinking of Ocing my Hd 6770. On the BIOS the only option is to change the Engine Speed. What does it really do and does it affect much if i made it higher? Original setting is 800MHz.
Spec: AMD athlon ii 645 OC 3.8GHz HD 6770 512DDR5 Asus m4a88t-m le 4g ddr3 1333