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 1096 MHz Memory (10% 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 9800 GT reference design (600/900), they become even more spectacular with 26% and 22%.
Temperatures
Unlike the original GeForce 8800 GT Series, the Zotac 9800 GT Amp! Edition runs cool at all times, but this comes at the cost of additional noise.