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 930 MHz core (20% overclock) and 1105 MHz Memory (11% overclock). Pretty nice overclocking potential, but you have to make sure the card stays below 100°C during overclocking. Once the card runs at around 102°C it will throttle down to 600 MHz clock speed which will significantly reduce performance but ensures the card does not overheat.

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 13.8%.

Temperatures

Idle temperatures are great, but load temperatures seem a bit high. Since this is a passive design, temperatures really depend on the amount of ventilation you have in your case. In our case we tested the worst case with only the PSU fan providing fresh air for the case.

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.