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GTX 280 max power is 236 Watts

by on11 June 2008

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GTX 260 at 182W


G200, Geforce GTX 280 will need a lot of power. Its maximal board power is set to ultra high 236W, which is about the same number that we reported months ago.

One 8-pin power connector can provide up to 150W of power, as a 6-pin is stuck at 75W and so is the PCIe 2.0 slot. If you use one 8-pin and one 6-pin together with PCIe 2.0 you can end up with up to 300W.

The GTX 260 is happy with two times 6-pin (2x75W) and PCIe 2.0 that also provides additional 75W. GTX 260 can get up to 225W and the card actually needs much less than that.

The chip has a thermal threshold at 105 degrees Celsius, and once the GPU reaches this temperature the clock speed will automatically drop down.

GTX 260 is a bit better, as its maximal board power is 182 Watts and with 2x6-pin and the power from PCIe 2.0 interface tends to be enough. The GPU threshold is again 105 degrees Celsius, but as we said before it is the same chip, just with one cluster disabled.

Last modified on 11 June 2008
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