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

Generally the size of the video and the bandwidth of a stream is a much better indicator than the resolution.

So your 4k video likely looks better because it contains more information and thus give a clearer picture