This is AC wall power as measured by a kill-a-watt, I have an Intel N150 mini PC here with 12GB of RAM, 512GB cheap NVME SSD, with wifi active, it's 8.2W idle at an xfce4 desktop with a lighted keyboard and mouse attached to it. It came with a 110-240 to 19VDC 3A power supply.

I'd say the cheap ac to dc power supply it came with is no more than 80% efficient so 6.56W DC would be what I might expect to see if I peeled apart its DC feed side power cable and put a precise clamp ammeter around it.

Absolutely maxed out with stress-ng it's 24.6W at the wall.