he could be using a g4400t cpu it will save up to 10 watts on your g3930
also all software readings are not important.
kwatt meter at the wall mining ⛏
kwatt meter at the wall not mining ⛏
those matter.
are you sure you have the plat version of that psu.
the plug socket must be blue to be plat.
if it is black it is the gold version.
lastly the kwatt meter at the wall can read hot.
i have four or five different models of kwatt meters.
they can vary five percent on the exact same load.
- My PSU is black plug, but i can't imagine it's a gold PSU. That's sound like fake news
https://www.techpowerup.com/review/fsp-pt-1200fm/- Ofcourse i use watt meter, not software reading. Agree there's some vary for sure, but 5% "on the exact same load" sound like not good quality product.
Finally all these stuff can not buff his result from 141W to 112-117W. I believe it's due to "manufacturing process" between ref and custom cards, like Red Panda statement.