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 745 MHz core (15% overclock) and 1080 MHz Memory (35% overclock). Overclocks are decent, but I am not sure who would want to overclock a passive low-end card.
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 21.1%.
Temperatures are good for a passive card, exactly where I would want to see them.
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.
|Desktop||157 MHz||200 MHz||0.90 V|
|Blu-Ray Playback||650 MHz||800 MHz||1.01 V|
|3D Load||650 MHz||800 MHz||1.01 V|