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What Is The Difference Between HDMI HD 2.0 And 1.4? Detailed Analysis!
May 07, 2018

HDMI Forum Inc. announced that the HDMI 2.0 standard specification has been finalized and released, greatly enhancing the support for 4K ultra-high-definition transmissions, and improving on multiple video and audio technologies. HDMI 1.4 already can support 4K, why should launch HDMI 2.0 yet, what difference do they have, PCER electronic will tell the detailed analysis.


First, hdmi 2.0 does not define new data lines and connectors and interfaces, so it can maintain perfect backward compatibility with hdmi 1.x. The existing two types of data lines can be used directly.


Second, hdmi 2.0 version of the standard specification has been formulated and released, greatly enhancing the support for 4K ultra-high-definition transmission, and in a number of video and audio technology has been improved.


Third, hdmi 1.4 can already support 4K, but subject to bandwidth, the highest can only reach 3840 × 2160 resolution and 30FPS frame rate, hdmi 2.0 will expand the bandwidth to 18Gbps, can support 3840 × 2160 resolution and 50FPS, 60FPS frame rate. At the same time support up to 32 channels in audio, and the highest sampling rate of 1536kHz.


Other major improvements:

- Simultaneous transmission of dual video streams to multiple users on the same screen

- Simultaneous transmission of multiple audio streams to up to four users

- Supports 21:9 widescreen display

- Dynamic synchronization of video and audio streams

- The cec extension gives better control over consumer electronics devices through a single point of control


All in all, HDMI 2.0 does not define new data lines and connectors and interfaces, so it can maintain perfect backward compatibility with HDMI 1.x. Existing Type 2 data lines can be used directly.


HDMI 2.0 will not replace HDMI 1.x, but based on the latter's enhancements, any device that wants to support HDMI 2.0 must first ensure basic support for HDMI 1.x.


HDMI 2.0 cable:

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HDMI 1.4 cable:

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