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 910 MHz core (21% overclock) and 1105 MHz Memory (23% overclock). Both overclocks are nice, especially the GDDR5 memory with its high-clock potential can help a lot. I wouldn't be surprised if we see another SKU called HD 6470 soon that runs at higher clock speeds, maybe 850 MHz or so - the GPU definitely can handle it.

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 21.4%.

Temperatures

Temperatures are low in all tests, given the increased fan noise under load I think a better choice would have been a few °C more under load and less fan noise.

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.