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 968 MHz core (4% overclock) and 1095 MHz Memory (10% overclock). Palit's card is a good overclocker, especially when you take the overclock in relation to the reference design clocks, in which case it would be +24% core and +22% memory. One reason for the high GPU overclock is certainly the increase GPU voltage of 1.17V which is a tad bit higher than the 1.08V of the NVIDIA reference design.
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 5.5%.
Temperatures
Temperatures are excellent, fan noise is low too, nothing I could complain about.
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.
| Core Clock | Memory Clock | GPU Voltage (measured) |
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Desktop | 51 MHz | 68 MHz | 1.01 V |
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Blu-ray Playback | 405 MHz | 162 MHz | 1.01 V |
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3D Load | 932 MHz | 1000 MHz | 1.01 V |
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