KFA2 supply software with the card, called ‘Xtreme Tuner HD' which allows for clock changes and voltage ramping.
We managed to achieve a 8% overclock on the core, and a 7% overclock on the memory speeds. These are quite good, especially considering the card is supplied in an overclocked state out of the box.
The additional overclock helps to boost the scores by a further 500 points, right behind the reference clocked AMD HD7970.