Electricity

[fivemack]

So, I have a GTX1080 and a GTX1080Ti.

The 1080 uses 123W to run 1280 curves at B1=850e6 in 47.2 hours

The 1080Ti uses 243W to run 1792 curves at B1=850e6 in 42.7 hours

So if my goal were to spend as few joules per curve as possible, the GTX1080 wins by about 25%. I suppose if I could figure out how to underclock the Ti it might well reduce the power consumption by more than it reduces the speed, and (assuming power goes as f^2) a 21% down clock would put it at the same joules/curve as the 1080 and 20% more curves per hour.

[axn]

Originally Posted by fivemack

I suppose if I could figure out how to underclock the Ti it might well reduce the power consumption by more than it reduces the speed, and (assuming power goes as f^2) a 21% down clock would put it at the same joules/curve as the 1080 and 20% more curves per hour.

Linux? Do you have nvidia-smi?

[pinhodecarlos]

This calls for a measurement and verification plan, use option A.

[LaurV]

Originally Posted by axn

Linux? Do you have nvidia-smi?

Windows? Nvidia Precision X - quite a wonderful tool, free.

[kriesel]

Originally Posted by LaurV

Windows? Nvidia Precision X - quite a wonderful tool, free.

nvidia-smi is also present on Windows, and being a cli app run only when needed from a batch file, has low overhead compared to say gpu-z or others. Choices are good!