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Nvidia GeForce 9800 GTX Extreme Overclocking
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Old 14th August 2008, 00:18   #1
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Default Nvidia GeForce 9800 GTX Extreme Overclocking

When the driver is loaded, the default GPU frequency is 1.22V in 3D mode. Having increased it to 1.528V we watched the card pass all of our tests at GPU frequencies of 875/2188MHz (879/2214MHz as reported by RivaTuner). This is an achievement: a frequency growth of 200MHz for the main domain of the G92 core and 500MHz for the shader domain The protection system woke up when we tried to increase the GPU voltage further, so we stopped at that. We didn’t want to ruin the card after all – we wanted to benchmark it.

The modified GeForce 9800 GTX proves to be as fast as the Radeon HD 4870 and Radeon HD 3870 X2, which is good. But you should keep it in mind that the modified card produces too much noise, consumes too much power and generates too much heat. And there is the constant risk of the GPU just burning out.

It is the first time when our extreme overclocking is rewarding. The modified GeForce 9800 GTX becomes the fastest card in this test (Crysis). It would be perfectly comfortable to play the game on that card if it were not for the rather low bottom speed, 20fps only. This is a win anyway, even though it comes at a high price. You just can’t use the card for long in such a harsh operation mode.

http://www.xbitlabs.com/articles/vid...ltmodding.html
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Old 14th August 2008, 00:23   #2
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875Mhz GPU is not bad, but Extreme OC would be 1065Mhz like this overclock
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