No idea, I’m not monitoring power consumption at all.
I’m just assuming that the Intel CPU based system will idle at X Watts, peak as Y Watts, and that an ARM based appliance would idle at X and peak lower than X.
If any thing, I noticed that my UPS batter didn’t last as long during an extended ded outage once I deploy the SFF PC.
Also, TCO, if I save $100 on the price of the device (that draws more power) that is a lot of power savings required to break even.