[angrygoat]

Back in 2009, Matthew Garrett measured a blinking cursor as costing 2W of power consumption. Presumably it'd be less of a big deal now, but it does show that UI updates on a low frequency can cost watts.

https://lwn.net/Articles/317923/

[TylerE]

Computers have come a long way. My M1 Studio only draws about 40-50w under heavy load (like, running AI models or a full screen 3D game).