Overclocking

To find the maximum overclock of our card we used a combination of ATITool's successor and our benchmarking suite.



The final overclocks of our card are 715 MHz core (10% overclock) and 1270 MHz Memory (21% overclock). In our GTX 280 review we saw exactly the same maximum core overclock of 715 MHz. Considering that Zotac already overclocked their card it is just even more impressive to see another 10%. Maybe Zotac limited their clock speeds in order to not hurt the GTX 280 sales too much. The memory overclock is amazing too, over 20% out of GDDR3 already running at more than 1 GHz is very impressive.

Temperatures

The cards runs at comfortable temperatures both in idle and load. Compared to the HD 4870, the GTX 260 AMP2 runs cooler but the fan noise is more as well.