Overclocking

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 945 MHz core (22% overclock) and 1255 MHz Memory (26% overclock). I am very satisfied with these overclocking results, they are both better than what we saw on our first HD 5670 sample from HIS. A 20% overclock on a brand-new product is very nice and lets us hope that we will soon see special overclocked editions of the HD 5670.

Overclocked Performance

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 18.3%.

Temperatures

Temperatures are very low and there is very little fan noise. This shows that MSI has made a great choice with their cooling solution - and also used proper fan settings in the BIOS.

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.