eli5 if my monitor is 1080p why does 4k look better than 1080p videos?

Question

shouldn’t 1080p and 4k have no difference if my monitor is only capable of displaying 1080p

In: 422

Answer 1

Compression. Uncompressed/RAW 1080p can look better than highly compressed H.264 4k, but the bandwidth requirements would be hundreds or even thousands of GB..