4K UHD Test Video

4K UHD is a resolution of 3840 pixels × 2160 lines (8.3 megapixels, aspect ratio 16:9) and is one of the two resolutions of ultra high definition television targeted towards consumer television, the other being 8K which is 7680 pixels × 4320 lines (33.2 megapixels). 4K has twice the horizontal and vertical resolution of the 1080p HDTV format, with four times as many pixels overall.

Currently all 4K televisions use a standard 5.1 sound system, with no moves towards 7.1 being publicized.