Question: what is 4k x 2k?
Answer: 4K x 2K is a screen resolution for next-generation HDTVs. The screen format is 3840 pixels by 2160 pixels, which offers a total resolution of 8.3 megapixels. This is a four-fold improvement in resolution compared with current 1080 HD screens, which offer only a total resolution of 2.1 megapixels.