Comment by bravetraveler

Eh, there are Zen+ APUs that'll use that much by themselves. I think you can expect 75W from any given full-size/wired PCIe slot.

One can have a desktop that's as efficient as a laptop... but you lose part of the exchange; mobility for power. The consumption/heat is less of a concern, solar aside. Plenty of room for cooling and components :)

I had a system that would idle at over 150W, not counting the three displays that cumulatively match that. Transceivers use mildly less power than 10GbE Ethernet... but still consume a bit of your budget.