Excellent energy efficiency with 750W ! That's more than a hoover has! A little joke.
The fact is: the specified power consumption (nominal, so to speak) is 320W according to Nvidia. The 750W is also stated there - but as the power of the entire system with all the trimmings.
https://www.nvidia.com/de-de/geforce/graphics-cards/40-series/rtx-4080-family/

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Excellent energy efficiency with 750W ! That's more than a hoover has! A little joke. 
The fact is: the specified power consumption (nominal, so to speak) is 320W according to Nvidia. The 750W is also stated there - but as the power of the entire system with all the trimmings. 
https://www.nvidia.com/de-de/geforce/graphics-cards/40-series/rtx-4080-family/

Accepted Answer

Thank you for pointing this out, I will revise the misleading specification as soon as possible.🫡

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