For our overclocking results today, we used our favourite software, the excellent Sapphire TriXX.
Even though this is a preoverclocked card, we managed to wrangle another 74mhz from the core, reaching 954mhz. The memory overclocked to 1406mhz, which translates to an effective 5624mhz.
The manual overclock manages to push performance above the reference clocked GTX570 and HD6970. Very good overall results.