Why do 4K videos on 1080p monitor look better than 1080p videos on 1080p monitor? The monitor displays the same amount of pixels in both cases, doesn’t it?
In: 12
The hard answer is chroma subsampling.
That means video typically has more resolution in the luminosity part of the video than the color information
So a 1080video has less than 1080 information in the color part of the video. Only a 4k video can saturate a 1080 display.
Also, 4k video has higher bandwidth and a more modern video codec.
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