hdmi ethernet channel – high-speed bi-directional communicationnot need a separate ethernet cable. speeds of up to 100mb/sec.internet sharing from one hdmi device to another will be possibleas well.
audio return channel- ( arc) to deliver audio “upstream” from atv to an a/v receiver , won’t need an extra cable for upstreamaudio transfers
3d support – to define common 3d formats and resolutions forhdmi-enabled devices”, up to 1080p.
4k x 2k resolution support – huge resolution hd , including3840×2160, 24hz/25hz/30hz, and 4096×2160 24hz
more color spaces – a better color on your television.
