And we’ve compared 4K and 1080P before, and you can check the difference and get a clue why 4K is better than 1080P. 4k UHD is mainly used in digital cinema with 4096x2160 as its pixel resolution or Ultra HD television with 3840× 2160 as its resolution. However, HD has taken a new leap with ‘4k UHD’ offering higher than 1080p resolution. We have been familiar with 1080p resolution for quite some years.