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GeForce GTX 590 voltage situation clarified

Posted on Tuesday, April 05 2011 @ 00:10:12 CEST by

The Tech Report has an update about the "exploding" GeForce GTX 590 cards, you can read it over here.
The biggest news on this front, in our view, is that Nvidia has put the clamps on GTX 590 voltage in its drivers. We shot down a rumor last week that the public-release 267.91 drivers somehow reduced the performance of a stock-clocked GTX 590. They simply do not. However, we've since learned Nvidia has capped the voltage at the default 938 mV on GTX 590 cards starting in release 267.91. We've confirmed that the latest 270.51 betas will not allow us to raise our GTX 590's voltage at all using MSI's Afterburner utility.

This driver-based cap means that even fairly modest overclocking may not longer be feasible with the GTX 590. Our so-called WICKED config only took the GPU core to 690MHz, and getting there required a bump to 963 mV. With Nvidia's latest drivers, a modest overclocked config like WICKED is not viable. The clock speed slider is willing, but the voltage is weak. GTX 590 owners will have to settle for whatever minor frequency increases they can achieve at stock voltages.



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