Overclocking

To find the maximum overclock of our card we used a combination of GPUTool 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 overclocks of our card are 875 MHz core (25% overclock) and 1410 MHz Memory (23% overclock). Whoa, that's some nice overclocking, especially for a card with all-new technology. Essentially you can buy a HD 5750, overclock it to HD 5770 performance levels and party away the rest of the money.

Overclocked Performance

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 from overclocking is 20.3%.

Temperatures

Temperatures are really low. Even with massive overclocking, the temperatures are in a perfectly safe range. On top of that the fan is whisper quiet - full score for Sapphire!