HDMI Forum Releases v2.1 of HDMI Specification

HDMI 2.1 spec has support for VRR, 10K resolution, and Dynamic ...

The HDMI Forum is nevertheless charging ahead and has released the HDMI 2.1 specification. The key enhancements delivered by HDMI 2.1 include higher resolutions and refresh rates - for example 8K60 and 4K120, and resolutions up to 10K. Dynamic HDR formats are also supported. It also reduces interference with nearby wireless devices because it features exceptionally low EMI (electro-magnetic interference). These include an Ethernet channel, and the cable is backward compatible to work with existing devices. HDMI Forum says that it will notify adopters when they release CTS materials.

Refresh rates for 4K will top out at 120Hz, while 8K will peak at a still solid 60Hz. For those who don't know, HDR stands for high dynamic range, which essentially offers higher contrast, vivid colours and near retina-searing brightness for compatible TVs and displays; Dynamic HDR does that but adjusts the settings on the fly to correspond with what's being displayed, which is pretty cool if you like that sort of thing.

Current HDMI 2.0 cables, referred to by some manufacturers as HDMI UHD, give a maximum video bandwidth of 18 Gbit/s, enabling HDMI 2.0 to carry 4K video at 60 Hz with 24 bit/px color dept.

eARC simplifies connectivity, provides greater ease of use, and supports the most advanced audio formats and highest audio quality. The new Quick Media Switching feature allows changes in refresh rates and resolution without the customary and annoying display blackout.

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Quick Frame Transport (QFT) reduces latency for smoother no-lag gaming, and real-time interactive virtual reality. There's also Quick Media Switching (QMS) as well as Auto Low Latency Mode (ALLM) which will automatically set the flawless latency for the smoothest experience.

The HDMI Forum is an open trade association that guides the future direction of HDMI technology and develops new versions of the HDMI Specification.

Earlier this year, we first began hearing about the upcoming HDMI 2.1 specification, which is set to pave the way for 4K/120Hz and 8K/60Hz.

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