For our overclocking results today we are using MSI's Afterburner software tool, a firm favourite for Nvidia boards.
As the card is already supplied in a highly overclocked state we weren't expecting to be able to push it much further. We hit 1GHZ on the core which was impressive, and the memory overclocked another 50mhz to 1150mhz.
The additional manual overclocks helped to increase the frame rates from 44.1 to 46.3, passing the MSI N560GTX TFII.