For our overclocking test we are using the latest version of Nvidia’s NTune application. This tool allows us to raise the core and memory speeds of the GT as well as monitor the temperature of the card. For the test we left the fan control at default settings. The graph above shows the final overclock achieved on the Asus card and compares it to the pre-overclocked Zotac card and the results from reference clocks.

The final stable overclock we were able to run at was 718MHz core, 1083MHz memory and 1795MHz shader which resulted in a small increase over the Zotac card. In both average and minimum frames per second the maximum overclock results in a five frames per second increase with maximum FPS increasing by eight.

Temperatures during the testing were as follows:

We were quite surprised regarding the idle temperature when the card was at reference clocks, considering it is a 65nm GPU we expected a little lower when not being stressed. Load temperatures were mostly as expected but it was interesting to see the overclocked load test being only two degrees higher than the stock temperature.