HDMI Versions Explained: Key Differences
HDMI (High-Definition Multimedia Interface) has evolved over the years to support higher resolutions, better audio, and advanced features. Here’s a quick breakdown of the main HDMI versions and what they offer:
- HDMI 1.0 to 1.2a (2002–2005)
Supports up to 1080p at 60Hz with 4.95 Gbps bandwidth. Good for basic HD video and audio. - HDMI 1.3 to 1.4b (2006–2009)
Increased bandwidth to 10.2 Gbps. Adds 3D support and 4K at 30Hz (3840×2160). HDMI 1.4 also introduced ARC (Audio Return Channel). - HDMI 2.0 to 2.0b (2013–2016)
Boosts bandwidth to 18 Gbps, allowing 4K at 60Hz and HDR. Supports up to 32 audio channels and dual video streams. - HDMI 2.1 (2017+)
Big jump to 48 Gbps. Supports 8K at 60Hz, 4K at 120Hz, and even 10K. Includes features like dynamic HDR, eARC (enhanced ARC), VRR (Variable Refresh Rate), and ALLM (Auto Low Latency Mode).
While all HDMI versions are backward compatible, advanced features like 4K at 120Hz or 8K resolution require every component in the setup (including cables and devices) to support HDMI 2.1. If any part of the chain uses an older HDMI version, performance will be limited to that component’s capabilities.