2nd GPU showing no wattage? Crazy high efficiency.

I know its working, this has been bothering me for a few months of having 2 vide cards, same result on all the miners I try, I can see the difference at the wall (1 gpu/2 gpu),the program shows both cards use 70 in total, but at the wall when I start mining I can see a change of over 100watts from idle.

https://preview.redd.it/fhm3jf6bzo071.jpg?width=752&format=pjpg&auto=webp&s=e67d1da2b3925adf5fdd20aca3d7948f20e5e8fe