Overclocking

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.



Maximum stable clocks of our card are 863 MHz core (15% overclock) and 1020 MHz Memory (5% overclock). GPU overclocking worked very well, especially when you consider that the card is already overclocked compared to NVIDIA's baseline frequency of 732 MHz.

With the silent BIOS we reached exactly the same maximum clocks.

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 12.2%.

Temperatures

Temperatures in both idle and load are low. While this may look great on paper, it comes at the cost of increased fan noise under load. A more balanced approach would have been wiser in my opinion. This also applies to the "Silent" BIOS, which I would have designed to be much more silent with higher temperatures, close to 80°C or so.

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 important performance scenarios and the GPU voltage that we measured. We measure on the pins of a coil or capacitor near the GPU voltage regulator.