Definition of - UltraHD 4k

UltraHD 4k
UltraHD is a term for a resolution that is 4 x higher than the current 1080p HD format. Ultra HD comes in two sizes, 3840 x 2160 pixels or 4096 x 2160 pixels. The 4K is a reference that it is 4x higher than the current high resolution. UltraHD is also refered to as ULtra HD, Ultra High Definition, 4K x 2K, Quad High Definition and 2160p.
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