China’s GPMI standard kicks HDMI and DisplayPort to the curb with 192 Gbps of bandwidth
The new GPMI interface can deliver faster speeds than HDMI 2.1 and DisplayPort 2.1 combined
The Shenzhen International 8K Ultra High Definition Video Industry Collaboration Alliance has revealed a new media connection standard that rivals HDMI, DisplayPort, and Thunderbolt. Presenting the General Purpose Media Interface (GPMI), the new wired connectivity standard that has the backing of more than 50 Chinese companies, including HiSilicon.
This new standard was designed for 8K media connectivity and power delivery. Its “Type-B” version supports up to 192 Gbps connectivity speeds and up to 480W power delivery. It also has a USB Type-C variant, which supports 96 Gbps speeds and up to 240W power delivery. Both versions of the standard support higher speed connectivity than HDMI 2.1 and DisplayPort 2.1. It also supports higher levels of power delivery than Thunderbolt 4.
The USB Association has approved the Shenzhen 8K Ultra High Definition Video Industry Collaboration Alliance’s use of USB Type-C. This makes GPMI Type-C cables compatible with the USB Type-C ecosystem.
GPMI delivers both high speeds and tonnes of power
Chinese companies are planning to bring their new General Purpose Media Interface standard to TVs and associated products in the near future. Like DisplayPort, the standard supports daisy-chain setups with multiple devices in series. The standard will support 8K content, and supports audio, video, data, control, and power transmissions over a single cable.
| Bandwidth (Gbps) | Power Delivery (W) | |
| HDMI 2.1 (TMDS) | 18 Gbps | N/A |
| HDMI 2.1 (FRL) | 48 Gbps | N/A |
| DisplayPort 2.1 (UHBR20) | 80 Gbps | N/A |
| Thunderbolt 4 | 40 Gbps | 100W |
| Thunderbolt 5 | 80 Gbps | 240W |
| GPMI Type-B | 96 Gbps | 480W |
| GPMI Type-C | 192 Gbps | 240W |
(Data from HKEPC)
Will GPMI become the “everything cable?” You can join the discussion on China’s GPMI standard on the OC3D Forums.
