Recently we obtained a piece of Sapphire’s X1600PRO for review, so we decided to experiment with it. We wanted to know if it had as much overclocking ability as the Inno3D 7600GS, since the RV530Pro used on the X1600PRO happens to be one of the first 90nm GPUs to appear on the mainstream market.
Using Zalman’s Fatality GPU heatsink fan, we were able to push the GPU to 648MHz and the memory to 414MHz. Clockspeeds wise this X1600PRO scales pretty nicely. Nevertheless we wanted more and thus we came out with the voltage modification for it.