Based around the NVIDIA G73 GPU built on 90 nm process, the Inno3D 7600GS promised much headroom for overclocking. Most 7600GS hits a wall early at around 470MHz Core. This is largely a cap due to limited voltage so we tweaked the voltage up and saw a massive clock increase from 470MHz to 720MHz! That is a massive 80% overclock over the 400MHz original!