1080p video not enough? YouTube gives you 4K option
YouTube now gives the option to watch selected videos in 4K resolution (4096×3072). This is nearly 4 times higher res than the 1080p video.
4K resolution is usually used in IMAX and 25 feet is said to be a suitable screen size to watch this video. Nonetheless, the same is now available on you PC too. You think your PC and your internet bandwidth can handle the load?
Though 4K option is provided, YouTube Blog clearly mentions the following
Because 4K represents the highest quality of video available, there are a few limitations that you should be aware of. First off, video cameras that shoot in 4K aren’t cheap, and projectors that show videos in 4K are typically the size of a small refrigerator. And, as we mentioned, watching these videos on YouTube will require super-fast broadband.
A playlist has been created in YouTube. Check out some sample videos. Click the source link for more details.