What is the difference between HDMI 1.4 and HDMI 2.0?
HDMI 1.4 can already support 4K, but subject to bandwidth, up to 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.
It also supports up to 32 channels in audio and up to 1536kHz sampling rate.
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 - Support for 21:9 super widescreen display - Dynamic synchronization of video and audio streams - CEC extension Better control of consumer electronics HDMI 2.0 with a single point of control does not define new data lines and connectors, interfaces, so it can maintain perfect backward compatibility with HDMI 1.x, existing Class 2 data lines can be used directly . As for whether the current device can be upgraded to HDMI 2.0, there is no such trend at present, and it is necessary for the manufacturer to update the hardware and firmware.
HDMI Forum Inc. also pointed out that HDMI 2.0 will not replace HDMI 1.x, but based on the latter enhancement, any device to support HDMI 2.0 must first guarantee the basic support for HDMI 1.x.
A good 1.4 wire is 2.0. Of course, too many lines are now shrinking. The main thing is the change of the device chip.
The HDMI 2.0 standard will support greater data transfer throughput to maximize the potential of 4K ultra-clear output. Although the current HDMI 1.4 standard can already support 4K resolution output, it is limited to the frame rate of 24fps or 30fps. Although this standard is sufficient for movie playback, it obviously cannot cope with the game demand (at least 60fps game screen is smooth). In addition, HDMI 1.4 can only support 8-bit color, but HDMI 2.0 can process 18 Gbit/s of data, enough for 12-bit color to display at a high frame rate of 60 fps per second.
The main features of HDMI 2.0
The sound output performance of HDMI 2.0 is also greatly enhanced, and it can process up to 32 channels of lossless audio. Although this sounds a bit exaggerated, it still brings a lot of practical meaning in actual use. For example, the latest Dolby Atmos surround sound format has reached 64-channel cinema level, even for the home version, it supports at least 32 channels. So, want a home theater to get cinema-like sound? HDMI 2.0 is easy to implement. The HDMI 2.0 cable shape is completely different from the current one. If you buy a device that supports HDMI 2.0, you don't need to buy a new cable. At the same time, HDMI 2.0 is also backward compatible with the old version, so the old Blu-ray player is also compatible with the new 4k TV.
Comparison of comparison parameters of all versions of HDMI1.0 to HDMI2.0:
It can be seen that the difference between HDMI 1.4 and 2.0 is still relatively large. Especially in the data transmission, so if you buy 4K TV, HDMI2.0 interface is a must-have interface.
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Post time: Aug-21-2018