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Old 2019-03-15, 12:35   #1
fivemack
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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.
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Old 2019-03-15, 12:54   #2
axn
 
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Quote:
Originally Posted by fivemack View Post
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?
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Old 2019-03-15, 14:13   #3
pinhodecarlos
 
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This calls for a measurement and verification plan, use option A.
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Old 2019-03-18, 03:04   #4
LaurV
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Quote:
Originally Posted by axn View Post
Linux? Do you have nvidia-smi?
Windows? Nvidia Precision X - quite a wonderful tool, free.
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Old 2019-03-27, 18:17   #5
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Quote:
Originally Posted by LaurV View Post
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!
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