Power draw of dGPU when idle in laptops

[Nobody99]

I am interested in the power draw of the dGPU in laptops. iGPU is the primary GPU to which all monitors are connected and that makes me wonder what is the power draw of the dGPU with lowest clock profile when idling.

 

[newtekie1]

It depends on the laptop and dGPU used. But most nVidia based solutions turn the dGPU almost completely off when it isn't in use, so the power draw would be effectively nothing.

 

[Nobody99]

It depends on the laptop and dGPU used. But most nVidia based solutions turn the dGPU almost completely off when it isn't in use, so the power draw would be effectively nothing.

I have seem some AMD GPUs which show the lowest clocks possible, how would NVIDIA GPU look like in GPU-Z when it is completely off? Because if it has frequency it must be drawing power.

 

[TheinsanegamerN]

I have seem some AMD GPUs which show the lowest clocks possible, how would NVIDIA GPU look like in GPU-Z when it is completely off? Because if it has frequency it must be drawing power.

On mine, if the dGPU is not being used, GPU-z shows what it's max clock would be, but shows a big fat 0 for current clock speed. All the graphs are basically 0 when it isnt being used.

AMD does the same thing with enduro.

 

[Nobody99]

On mine, if the dGPU is not being used, GPU-z shows what it's max clock would be, but shows a big fat 0 for current clock speed. All the graphs are basically 0 when it isnt being used.

AMD does the same thing with enduro.

HD 7650M shows the lowest possible clock when not in use and is not completely disabled: