Overclocking
To find the maximum overclock of our card we used a combination of ATITool's successor and our benchmarking suite.
The overclocks listed here were achieved with the default fan and voltage settings as defined in the VGA BIOS. Please note that every single sample overclocks differently, that's why our results here can only serve as a guideline for what you can expect from your card.
The final overclocks of our card are 755 MHz core (26% overclock) and 600 MHz Memory (20% overclock).
Using these clock frequencies we ran a quick test of Call of Duty 4 to evaluate the gains from overclocking.
The actual 3D performance gained is 22.7%.
Temperatures
For a passive card these temperatures are amazing. Even with all the overclocking we did, staying below 70°C is an amazing feat. I think it is safe to use this card in a case with very little or no ventilation at all.