What is the difference between DP interface and HDMI, and what are their advantages and disadvantages?

What is the difference between DP interface and HDMI? I believe everyone would like to know the difference between them .Let us  firstly take a look at  some relevant information about DP interface.

Display Port is a display interface issued by the Video Electronics Standards Association (VESA). As the successor to DVI, Display Port will add support for high-definition audio signal transmission while transmitting video signals, while supporting higher resolutions and refresh rates. It can support single-channel, one-way, four-line connection, data transmission rate 10.8Gbps, enough to transmit uncompressed video and related audio, and also supports 1Mbps bidirectional auxiliary channel for device control, in addition to support 8-bit And 10-bit color. In data transmission, Display Port uses the "micro-packetised" format. VESA also said that Display Port has a high degree of scalability, and can continue to add more new content in the future.

What are the advantages of the Display Port interface? There are three main points:

Advantage 1: AMD multi-screen splicing technology must have Display Port interface. AMD supports the latest multi-screen splicing display technology released by AMD in the graphics card. Taking three-screen splicing as an example, AMD's HD5000 series graphics cards are designed with a Display Port interface. Users need to connect to a display device that supports this interface through a Display Port data cable to become the main display for three-screen splicing display, and it must be a Display Port interface directly. The connection cannot be converted in any way. Therefore, for display enthusiast users, their demand for liquid crystal displays capable of supporting the Display Port interface is gradually increasing.

Advantage 2: Higher bandwidth and lower cost. The current HDMI 1.3 interface can support about 10.2Gbps bandwidth signal transmission, while the Display Port interface can transmit 10.8Gbps bandwidth signal, the advantage is obvious. With the advantages of ultra-high bandwidth, Display Port can easily support ultra-high resolution displays like 2560×1600.

Advantage 3: Free. This is also the most important. The latest Display Port interface is not like the HDMI interface. It needs to pay a certain amount of membership fees every year, and it does not have to pay every product that contains the HDMI interface . It is completely royalty-free in the true sense. Therefore, the Display Port interface has been strongly supported by many internationally renowned manufacturers.

We know the advantages of the DP interface, so what are the advantages of HDMI?

There are two major advantages of HDMI interface:

First, there are many types of devices that support the HDMI interface. HDMI is currently a widely used display interface standard. In addition to the D-Sub and DVI-D interfaces that almost all monitors will be equipped with, the HDMI interface is often able to be used in the current high-end medium and large-size models. Therefore, in terms of displays, products equipped with HDMI interfaces are abundant in number. Of course, in addition to the display, in terms of graphics, many graphics cards can be equipped with HDMI interface. In terms of notebook computers, many current models have upgraded the display expansion interface from the traditional D-Sub interface to the HDMI interface, which can more easily transmit image signals. In addition, the current well-known game console platforms have adopted the HDMI interface as a line transmission method.

The second point is the quick and easy connection method for game players. Of course, for gamers, the HDMI interface is also their most concerned item. Since the current PS3 or Xbox360 game consoles all use the HDMI interface as a signal output, if the display device is equipped with an HDMI interface, it will greatly bring more convenient docking environment for users. And the large bandwidth of the HDMI interface is also sufficient to transmit 1080p resolution video and audio signals. Compared with the original game platform that needs to connect a lot of lines, the game platform that supports HDMI transmission only needs one line to easily connect.