The final specification for (High Definition Multimedia-Media Interface)HDMI 2.1 has been announced by HDMI Forum. HDMI 2.1 is almost future-proofed, that means it can cope with the devices of future. Most of the stuff it adds, like higher resolutions and frame rates, won’t be widely available for some years, if they come at all. A TV or a computer bought today or next year that doesn’t have HDMI 2.1 will still be able to play back the vast majority of available content in the highest quality. And we don’t expect TVs with HDMI 2.1 to even go on sale until late 2018 or, more likely, 2019.
Up to 10K resolution and higher frame rate
HDMI Specification 2.1 is the most recent update of the HDMI specification and supports a range of higher video resolutions and refresh rates including 8K 60fps and 4K 120fps, and resolutions up to 10K. Dynamic HDR formats are also supported, and bandwidth capability is increased up to 48Gbps.
This new version of the HDMI specification also introduces an enhanced refresh rate that gamers will appreciate. VRR, or Variable Refresh Rate, reduces, or in some cases eliminates, lag for smoother gameplay, while Quick Frame Transport (QFT) reduces latency. Quick Media Switching, or QMS, reduces the amount of blank-screen wait time while switching media. HDMI 2.1 also includes Auto Low Latency Mode (ALLM), which automatically sets the ideal latency for the smoothest viewing experience.
If you’re not sure what this HDMI upgrade means, this handy chart provided by the HDMI forum makes it clearer. You can clearly see how upgraded specifications have increased support for different features as specifications improved.