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HDMI cables and the standards

What are they and what do they all mean?

The HDMI standard has been going for some years and the specification has improved over the time. Starting at version 1.0 with steady increases to the top current spec of 2.1. The following table shows the improving spec with HDMI version revisions

Significant  advantages of HDMI 2.0 and 2.1

HDMI 2.0 increases the bandwidth from 10.2 Gbps up to 18Gbps and has 4K support for resolutions up to 2160p at 50/60Hz frame rates. This is in fact a huge  jump,  – the equivalent of 4x 1080p/60 resolution displays—all running at once. Additionally, HDMI 2.0 supports up to 32 channels of audio at up to 1.536MHz. You can also display up to four streams of audio and there is dynamic synchronization of the audio and video streams. HDMI 2.1 goes even further and takes the bandwidth to 48Gbps and has 8K support for resolutions up to 2880 at 60Hz refresh rates or 4K support at 120Hz refresh rates. Dynamic HDR is supported with 2.1.

For a list and simple explanation of each feature line in the table go to HDMI Feature definitions page

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