Ultra high definition television (UHDTV) provides several improvements over traditional HDTV, including higher resolution (4K is 3840x2160 and 8K is 7680x4320), a wider color space for more natural colors, and higher frame rates up to 120 frames per second for smoother 3D video. However, UHDTV requires much greater bandwidth for transmission - 4K requires 4 times and 8K requires 16 times as many bits as HDTV. New equipment like UHDTV displays, sources, transmission standards, and codecs are still being developed to fully realize UHDTV, but it will provide a dramatic improvement in video and audio quality over existing HDTV.