295X2 Power Usage (Technical)

[spartin503]

I was under the impression that the PCIe power connectors on graphics cards were standardized. The 6-pin can pull 75W and the 8-pin can pull 150W plus the PCIe interface can pull 75W as well. But the 295X2 supposedly pulls 500W from two 8-pin connectors which should only allow 375W to the card. But I did do the math and with the gauge of wire that power supplies use, they can technically output up to 14 amps and 12 volts per cable. Which means that a 6-pin or an 8-pin could max out at 504W. Although that would be unsafe, because there wouldn't be a sufficient about of grounded wires to handle that power. So does the 295X2 just use more amps than the PCIe standard allows or does it really only consume 375W?

[WoodenMarker]

The 295x2 breaks the pci-e specification. That doesn't mean it doesn't work though since high quality psus can power the card just fine. 

[spartin503]

The 295x2 breaks the pci-e specification. That doesn't mean it doesn't work though since high quality psus can power the card just fine.

Here another question than. Why does the PCIe specification use 5 ground wires and 3 power wires on the 8-pin when each ground can with stand the same amound of amps and volts?

[WoodenMarker]

Here another question than. Why does the PCIe specification use 5 ground wires and 3 power wires on the 8-pin when each ground can with stand the same amound of amps and volts?

*shrug* Dunno.

@quan289?

[spartin503]

*shrug* Dunno.

@quan289?

Thank you for the information.