The Chinese Developed an Alternative to HDMI and DisplayPort – The GPMI Standard
The Chinese organization Shenzhen 8K UHD Video Industry Cooperation Alliance (SUCA) has introduced a new standard for wired media data transmission — General Purpose Media Interface (GPMI). It is designed for transmitting 8K video and provides a bandwidth of up to 192 Gbps.
According to the available information, the GPMI cable comes in two variants: Type-B, which is supposedly a proprietary interface, and Type-C, which is compatible with USB-C. 8K video has a resolution that is 4 times higher than 4K and 16 times higher than 1080p, which requires significantly more bandwidth than existing standards. The GPMI Type-C connector has a maximum throughput of 96 Gbps and a power delivery of up to 240 W. This is more than double the 40 Gbps data transfer rate of USB4 and Thunderbolt 4, but the power rating is similar to the latest USB Type-C standard with Extended Power Range (EPR) support.
The GPMI Type-B cable exceeds existing standards by delivering data transfer rates of up to 192 Gbps and power delivery of up to 480 watts. While this isn’t enough to power high-end gaming PCs from a monitor, it’s more than enough for many gaming laptops with high-end discrete graphics.
Currently, USB Type-C and Thunderbolt are the main ports for powering devices, and TVs use HDMI ports, but the advent of GPMI could change this by reducing the number of cables.
