Overclocking

To find the maximum overclock of our card we used a combination of GPUTool and our benchmarking suite.
The overclocks listed in this section 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.



Overclocks of our card are 930 MHz core (16% overclock) and 1470 MHz Memory (18% overclock). Quite impressive, this is even higher than what we could get out of our full HD 6970 which clocked in at 915 / 1445 MHz. This nice overclocking potential will come in handy when modding this card to a full HD 6970, as the modified card will have no problems running full HD 6970 clock speed.

Overclocked Performance

Using these clock frequencies we ran a quick test of Call of Duty 4 to evaluate the gains from overclocking.


Actual 3D performance gained from overclocking is 14.4%.

Temperatures

Temperatures in idle are fine, but load temperatures seem pretty much at the limit for what I could consider acceptable. Unfortunately fan noise is quite high as well.

Clock Profiles

Modern graphics cards have several clock profiles that are selected to balance power draw and performance requirements.
The following table lists the clock settings for major performance scenarios and the GPU voltage that we measured. We measure on the pins of a coil or capacitor near the GPU voltage regulator.