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On youtube? It depends. Youtube recompresses video uploads to reduce space and store a version of the video which requires the least CPU to decompress. I've uploaded 1080p videos which later look horrible in the youtube version. And the same happens with 4k video. Having said that, it is very unlikely youtube will increase the quality of the video streams, ...


No, there is no difference to the human eye (or exceptionally minimal). Your monitor can't display higher quality than it is capable of displaying. The only advantage you would have is if you were to zoom in on part of the image, you would have more detail when you zoomed in. Additionally, as user1118321 pointed out, since 4k is not an even multiple of ...


There's not a lot of point to it. You're using more network bandwidth to download it, and your computer is working harder to display it, but no, you get no additional visible quality from it. In fact, it's likely that you'll get lower quality because the computer has to downsample it before it can display it.

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