Overclocking
To find the maximum overclock of our card we used a combination of ATITool's successor (work in progress) and our benchmarking suite.
The final overclocks of our card are 761 MHz core (9% overclock) and 1086 MHz Memory (9% overclock). Both overclocks are quite nice, considering that this is an already pre-overclocked product. When you put these overclocks in perspective to the clocks of the NVIDIA 9500 GT reference design (550/800), you can see the true potential of the OC version - 39% and 36% !
Temperatures
There is only a small temperature difference between idle and load. Both temperatures are comfortably cool, so you could probably slow down the fan even more.