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.



On our sample we could reach a maximum stable clock speed of 1035 MHz core (4% overclock) and 1175 MHz Memory (7% overclock).

The maximum GPU frequency sits right in the middle of today's GTX 550 Ti test group. Memory overclock is a bit disappointing, we have seen well over 1200 MHz on other cards.

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 3.8%.

Temperatures

Idle temperatures of the card are low, combined with the low fan noise in idle an excellent combination. Under load the card runs at what I would consider a safe maximum for a GPU like this.

Voltage Tuning

Voltage tuning via NVIDIA's driver is not possible on the card, there are no increased voltages that can be set.

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.