eli5 Why does GPU heats and use fan to cooldown while processing 8k video on PC and there is no single fan in a TV and still process 8k/4k videos?

Question

In short, why does the the TV doesn’t need a fan to cooldown and PC requires one while dealing with high definition videos?

In: 1359

Answer 1

Your GPU isn’t heating up because it’s playing an 8k video, it’s heating up because it’s figuring out what pixels to put where in that 8k video.
Difference between displaying a painting in a gallery (your TV) and painting one by hand (your GPU) – one takes a LOT more work than the other. And with electricity, work = heat generated