By PURPLELEC | 09 January 2025 | 0 Comments
HDMI 2.0 vs HDMI 2.1: Specification Comparison and Future Outlook
HDMI 2.1: Latest Specifications and Powerful Features
HDMI 2.1 is the latest specification of HDMI, bringing unprecedented video and audio performance improvements. It supports resolutions up to 10k and can run smoothly at 8K @ 60Hz and 4K @ 120Hz, greatly improving image details and viewing experience. In addition, HDMI 2.1 also introduces dynamic HDR support to ensure that images are displayed with the correct color depth, details and brightness. Other features include SBTM (Source-Based Tony Mapping) for sharing visual and graphics processing tasks; Ultra-High-Speed Cable supports 48G bandwidth, reducing latency and electromagnetic interference; and eARC, providing more advanced and high-quality audio signals.
For gaming enthusiasts, HDMI 2.1 provides variable refresh rate (VRR), automatic low latency mode (ALLM) and quick frame transport (QFT), eliminating stuttering, frame lag and visual tearing for a smoother gaming experience. Quick Media Switching (QMS) for movies and videos eliminates latency when switching between devices. HDMI Cable Power makes active HDMI cables even more convenient to use.
HDMI 2.0: Laying the foundation for 4K TVs
HDMI 2.0 is an upgrade to HDMI v1.4, increasing bandwidth from 10.2 Gbps to 18 Gbps, ushering in the era of ultra-high-definition 4K TVs. It supports resolutions up to 4K @ 60Hz, making it a must-have for high-quality home videos and computer games. Audio quality has also been significantly improved, supporting up to 32 audio channels and audio sampling frequencies up to 1536kHz. In addition, HDMI 2.0 introduces dual video streams and multi-stream audio capabilities, supports wide-angle cinema 21:9 video aspect ratios, and dynamic synchronization of video and audio streams.
HDMI 2.0 vs. HDMI 2.1
HDMI 2.1 is superior in handling 4K and 8K resolutions compared to HDMI 2.0. HDMI 2.1 increases bandwidth availability from 18 Gbps to 48 Gbps, enabling smoother and more efficient handling of 4K @ 120Hz and 8K @ 60Hz. In addition, HDMI 2.1 further improves visuals with future-proof HDR protocols, supporting richer colors and deeper full color gamut depth.
HDMI 2.1 Hardware Requirements and Future Outlook
To enjoy all the benefits of HDMI 2.1, you need a new HDMI 2.1-capable device and a suitable HDMI 2.1 cable. Although HDMI 2.1 is backward compatible, only HDMI 2.0 devices or cables will not be able to fully utilize the performance of HDMI 2.1. For gamers and audio enthusiasts seeking the ultimate gaming experience, HDMI 2.1 provides necessary performance increases and feature improvements.
As more and more devices adopt HDMI 2.1, this specification will become mainstream in the future. Although you may not need all of these new features now, upgrading to HDMI 2.1 will ensure that you are not left behind in the development of technology.
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