Overclocking
The card uses different clocks for 2D and 3D. While running in 2D mode the clocks are 250 MHz on the core and 800 MHz on the memory. In 3D the defaults are 650 MHz / 800 MHz.
We used ATITool to automatically find the maximum core and memory clocks of our card.
In the end the card runs completely stable at 697 MHz Core (7 % overclock) and 804 MHz Memory (0.5 % overclock). Both overclocks are nothing spectacular, especially the low memory overclock is a bit scary.
Overall the overclocks are fair for a pre-modded card, a voltmod can probably raise the clocks some more.