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 740 MHz core (22% overclock) and 925 MHz Memory (11% overclock). Compared to the reference design card that we previously tested, those results are very similar. An overclock of over 20% is quite impressive and opens up a way for overclockers and tweakers to gain substantial extra performance at the more affordable price of the GTX 470.

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 19.0%.

Temperatures

Temperatures are fine. NVIDIA's reference design runs a few °C hotter at around 92°C but such a small difference has no measurable effect on component lifetime or overclocking.

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.