To show you what are the main differences between DP ports and HDMI ports
1. Different bandwidth and penetration rates
HDMI 2.1 is better than DP 1.4 in terms of bandwidth and data rate, resolution, refresh rate, and supports more video specifications than DP, but it is not yet widespread, and many older graphics cards or monitors don't support HDMI 2.1 ports, even if they are good enough.
At present, the most common HDMI 2.0 interface on the market only supports 18Gbps bandwidth, so the highest can only support 4K 60Hz display, can not be used for 4K 120Hz display. The popular DP1.4 has a bandwidth of 32.4gbps and can easily support 4K 144Hz and 8K 30hz screens.
2. Difference in color space
The DP port supports the DCI-P3 color gamut, but the HDMI port does not.
3. Different technical support
AMD multi-screen splicing technology can only be implemented using DP interface, but HDMI interface cannot be implemented. The user needs to connect with the display device supporting this interface through the DP data line to become the main display for the three-screen splicing display, and the DisplayPort interface must be directly connected without any form of conversion.
4. Different equipment expansion
The DP interface can be combined with the lightning interface to achieve a more convenient type of device expansion. HDMI ports don't do that.
5, manufacturers production costs are different
DP interface technology is free of authentication and authorization, and the production of this interface is free, while the production of HDMI interface needs to pay a certain annual membership fee. This is also one of the reasons why DP interface penetration rate and usage rate are very high.
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