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

Common video codecs (for broadcast & streaming) are highly asymmetrical. That means it’s takes way more effort to create the stream (or file) than it does to play it. That’s why a TV doesn’t struggle to play content without getting too hot, while generating the content produces more heat.