I'm not sure that the U3 at 590 w/TH (0.59w/GH) is less power than the S9 96 w/TH is "using less power", but ok
If you have one U3 and one S9, I'm pretty sure that although the S9 mines more, it uses significantly more power than the U3, but ok
For a given hashrate, the U3 uses 6.1458333 times more power(electric) than the S9.
(S9 Electric usage per hash) * (6.145833333333333) = (U3 Electric usage per hash)
Because, math.
Comparing "overall" is like saying a jet uses more fuel than a moped.
