The HDMI 2.2 standard was officially announced at CES 2025, marking a significant technological leap since the release of HDMI 2.1 in 2017. This standard has brought significant technological advancements and performance improvements. This article will provide a detailed explanation of the advantages of HDMI 2.2 and compare it with HDMI 2.1.
1, Advantages of HDMI 2.2
1. Bandwidth increase: The most significant change is the bandwidth jumping from 48 Gbps to 96 Gbps, which is almost twice the previous version and surpasses the 80 Gbps of DisplayPort 2.1. This means that HDMI 2.2 can support higher resolutions and refresh rates, such as uncompressed transmission 4K@240Hz Or achieved through compression technology 12K@120Hz And 16K resolution.
2. Delay Indication Protocol (LIP): Introduced a delay indication protocol to improve the audio and video synchronization experience, especially in multi hop system configurations such as home theater settings with audio and video receivers or soundbars.
3. Ultra96 HDMI cable: In order to meet new bandwidth requirements, a new Ultra96 HDMI cable has been launched, which has undergone strict certification procedures to ensure stable performance at different lengths.
4. Enhanced HDR support: In addition to dynamic HDR, it also supports source based tone mapping (SBTM), allowing source devices to perform partial HDR mapping and optimize HDR signal output.
5. Higher quality audio return channel (eARC): Not only does it simplify the connection and make it more convenient to use, but it also supports advanced audio formats and high audio quality.
6. Game feature improvements include variable refresh rate (VRR), automatic low latency mode (ALLM), fast frame transfer (QFT), etc., providing ideal latency settings and smooth gaming experience for gamers.
