The differences are: DP cable 1.2 supports 4K level 60Hz output, while DP cable version 1.4 supports 8K level 60Hz output, 4K up to 120Hz; DP cable version 1.2 supports bandwidth of 21.6Gbps, while DP cable version 1.4 has a maximum bandwidth of 32Gbps; and DP cable version 1.2 has relatively old technical specifications and a cheaper price.

The DP interface, known as DisplayPort, is a digital video interface standard developed by a consortium of PC and chip manufacturers and standardized by the Video Electronics Standards Association (VESA). The interface is primarily used for connecting a video source to a device such as a monitor, but also supports carrying audio, USB, and other forms of data.

The difference between DP cable 1.2 and 1.4 is:

1. Support different output resolutionDP cable version 1.2 supports 4K (4096X2160) 60Hz output; DP cable version 1.4 supports 8K level (7680x4320) 60Hz output, and 4K can be up to 120Hz. the higher the resolution, the clearer the display will be.2. Different maximum bandwidthDP cable version 1.2 supports a bandwidth of 21.6Gbps; DP cable version 1.4 has a maximum bandwidth of 32Gbps, the higher the bandwidth, the higher the number of files transferred.3. Different display technologiesDP cable 1.4 supports 10 bit image transmission, HDR dynamic image transmission, which can better reflect the visual effect of the real environment. It supports G-SYNC and Freeync technology, which can solve the problem of tearing and jamming caused by high-frequency refresh.4. Price differenceDP cable version 1.2 technical specifications are relatively old, DP cable version 1.4 than 1.2 DP cable to support higher resolution, better display effect, so the price is higher.