Comparison of DP2.0 and HDMI2.1 parameter standards and application advantages and disadvantages
2021-04-07
Both DP and HDMI are commonly used video and audio transmission protocols, which support simultaneous audio and video output, and can be used for computer TV, projection display and other devices. DP and HDMI protocols have their own advantages, and different versions are also catching up with each other in performance. In the last chapter, we popularized the DP2.0 protocol standard. DP2.0 raised the transmission bandwidth to a new level. Compared with the same excellent HDMI2.1 video and audio protocol, which is better, DP2.0 or HDMI2.1? Below we compare DP2.0 and HDMI2.1 from three aspects: physical interface, parameter standards and application advantages.
Both DP and HDMI are commonly used video and audio transmission protocols, which support simultaneous audio and video output, and can be used for computer TV, projection display and other devices. DP and HDMI protocols have their own advantages, and different versions are also catching up with each other in performance. In the last chapter, we popularized the DP2.0 protocol standard. DP2.0 raised the transmission bandwidth to a new level. Compared with the same excellent HDMI2.1 video and audio protocol, which is better, DP2.0 or HDMI2.1? Below we compare DP2.0 and HDMI2.1 from three aspects: physical interface, parameter standards and application advantages.
One, DP2.0 and HDMI2.1 physical interface
According to the announcement of the DP2.0 management party VESA Association, the DP Alt mode can be seamlessly connected with the USB4 specification, the DP2.0 physical interface can be transformed into a new type of USB Type-C, and HDMI2.1 is the traditional HDMI interface. This depends on DP2. .0 is more advantageous, because Type-C has been widely used in mobile Internet terminal devices such as mobile phones, tablet ultrabooks, etc. due to its compact size and powerful functions, and it has a trend of unified peripheral interfaces. With the aid of the Type-C appearance, the DP2.0 protocol can not only save device interface space, but also achieve compatibility between different devices.
2. DP2.0 and HDMI2.1 parameter standards
DP2.0 protocol: DP2.0 bandwidth is 80Gbps, supports 16K@60Hz (15360*8460), 8K@120Hz (7680*4320) and 4K@144Hz (3840*2160) resolution, supports 3D imaging and 144Hz dynamic HDR;
HDMI2.1 protocol: HDMI2.1 bandwidth is 48Gbps, supports 8K@60Hz and 4K@120Hz resolution, supports 3D imaging and 120Hz dynamic HDR;
Parameters Here, the performance of the DP2.0 protocol is more powerful, and it has entered a new level in terms of bandwidth, resolution and refresh rate. The performance of HDMI2.1 is closer to the previous version of DP2.0, DP1.4.
3. DP2.0 and HDMI2.1 application advantages
From the above two points, it can be found that DP2.0 is superior to HDMI2.1 in terms of interface versatility and performance parameters, and the DP2.0 interface has an advantage for manufacturers, which is that it is free of certification and license fees. However, the VESA Association has not announced the DP2.0 supporting chip solution, so there is no DP2.0 interface PC display device on the market. DP2.0 can only be said to have great potential.
For HDMI2.1, the application environment accumulated over the years of HDMI has been very mature. It is widely used in computer hosts, high-definition TVs, and projection imaging. The supporting equipment is also very sound. This is the advantage of HDMI2.1, and at this stage Almost all network HD resources are configured in 4k@60, 8k video resources are still rare, and 16k is almost none, so the HDMI2.1 protocol can fully meet the demand, and HDMI2.1 has obvious advantages compared with DP2.0.
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