The HDMI Forum has announced the official release of Version 2.1 of the HDMI specification, supporting resolutions up to 10K (10,240 x 4,380) as well Dynamic HDR formats and bandwidth capability up to 48Gbps.
The new HDMI specification is now available to all HDMI 2.0 adopters. With the new cabling, HDMI can support uncompressed 4K video at up to 120 frames per second, with high dynamic range color with up to 12 bits per channel.
Videos also get a boost, mostly due to dynamic HDR, which allows a video to send high-dynamic range metadata to your HDR television scene-by-scene or even frame-by-frame basis, rather than simply at the start of a video. The mandatory Ultra High Speed HDMI cable can now carry up to 48 Gbps and allows for Display Strem Compression (DSC). It features exceptionally low EMI (electro-magnetic interference) which reduces interference with nearby wireless devices. The cable is also backwards compatible and can be used with the existing installed base of HDMI devices, said the industry body.
The new spec supports 8K and even 10K resolutions, but those are better thought of as future-proofing or targeted towards commercial applications.
HDMI 2.1 will support data transfer rates of up to 48Gbps, which beats out Thunderbolt 3's offering of 40Gbps.
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The HDMI 2.1 cable spec remains backwards-compatible with HDMI 2.0, for some reason (El Reg is wondering how many people buy the new cable before they've also bought the new TV and a suitable content source).
eARC simplifies connectivity, provides greater ease of use, and supports the most advanced audio formats and highest audio quality.
HDMI 2.1 also introduces Quick Frame Transport, which "reduces latency for smoother no-lag gaming, and real-time interactive virtual reality".
Quick Media Switching (QMS) for movies and video eliminates the delay that can result in blank screens before content is displayed. More information will be available at CES 2018 in January, we're told. HDMI Licensing Administrator, Inc.