Sorry, I probably made a mistake and it seems to be 1.5 or 2 W for these two laptops. I was looking at the 35 W rating instead of the TDP 45 to get 29.3 S/s. I’m 3 W per Sol/s on a i5 3rd generation avx1 2012 CPU as a full desktop (55 W killowatt to get 18 S/s while connected to the pool via xenoncat), so I would have thought 1 W is possible with a new chip and some system efficiency.
I am guessing his total laptop power was 45 W with a TDP of 45 W
Here’s another who’s CPU TDP watts are 2x his S/s:
Here’s someone telling me his 470 GPU got 45 Sol/s at 70 watt, but 90 W system-wide, so it is still neck and neck with CPUs.
The cheapest capital costs I’ve seen are 270x ($100) getting 45 Sol/s with claymore. This beats buying used desktops by 2.5x but costs 5 J/s.