HDMI 2.0 is not technically a thing, but rather an outdated way to refer to a version of the HDMI standard. It's more accurate to consider it a feature set introduced as part of the broader HDMI specification. Specifically, it supported higher bandwidth requirements for devices, primarily focused on enabling 4K Ultra HD displays.
Here's a breakdown:
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It's about Bandwidth: 4K resolution displays require significantly more bandwidth than previous technologies like 1080p. HDMI 2.0 provided the necessary bandwidth (up to 18 Gbps) to handle the increased audio and video data.
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Key Features Enabled:
- 4K resolution at 60 frames per second (fps)
- Increased color depth (more shades of colors)
- Support for 32 audio channels
- Simultaneous delivery of dual video streams to multiple users on the same screen
- Support for a 21:9 aspect ratio video
- Dynamic auto lip-sync
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HDMI 2.0 vs. Later Versions: While HDMI 2.0 was a significant step, it has been superseded by newer versions like HDMI 2.1, which offer even greater bandwidth and support for 8K resolution, higher refresh rates, and features like Variable Refresh Rate (VRR).
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Importance of Cables: To take advantage of HDMI 2.0 (and subsequent versions), you need compatible cables. High-speed HDMI cables are generally required for 4K at 60fps. Check your cable specifications to ensure it supports the bandwidth needed for your devices.
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Why the confusion with "HDMI 2"? The industry initially marketed the advancements as "HDMI 2.0" but now emphasizes specific feature sets. The HDMI Licensing Administrator encourages referencing features instead of version numbers, as manufacturers can choose which features to include, even within a particular version.
In short, HDMI 2.0 was a key update to the HDMI standard that enabled 4K UHD video. Though "HDMI 2.0" isn't strictly the correct term now, it signifies a major improvement in video and audio capabilities, and helped pave the way for even more advanced HDMI versions.
