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A consortium of over 50 Chinese companies, including names like Huawei, Hisense, and TCL, has unveiled a domestic alternative to HDMI that offers up to 192 Gbps bandwidth and 480 W of power delivery. This new standard, the General Purpose Media Interface (GPMI), supports next-generation multimedia devices, meeting the growing demands of 8K resolution, higher refresh rates, and simplified connectivity. There are two variants available: a smaller Type-C model providing 96 Gbps and 240 W and a larger Type-B model delivering the full 192 Gbps and 480 W. Developed as a third-generation audio and video interface, GPMI addresses the limitations of older standards such as DVI and VGA while vastly outperforming HDMI 2.1's 48 Gbps and DisplayPort 2.1's 80 Gbps in data throughput. Its design enables bidirectional communication, seamlessly transmitting video, audio, data, and power over a single cable.
The standard's architecture includes a primary data link that can be split into various configurations—such as 6+2 or 1+7 channels—to adapt to different usage scenarios. In addition to its high-bandwidth data channels, GPMI features auxiliary links for device management, cable information, and a limited USB 2.0 connection. The Type-C variant, which has received approval from the USB Association, ensures compatibility with the USB-C ecosystem, helping with the integration for smart TVs and other connected devices. Primarily developed for the domestic market, GPMI also aims to reduce China's dependence on Western-controlled standards and licensing regimes.
Traditional HDMI licensing requires companies to become official adopters, carrying an annual fee of $10,000 for high-volume manufacturers or $5,000 plus a $1 per unit administration fee for low-volume users. All this while imposing per-unit royalties of $0.15 that can decrease to as low as $0.04 when the HDMI logo and HDCP are employed, providing access to the latest specifications, compliance testing, and promotional benefits. Chinese GPMI aims to break away from these chains of licenses and improve the traditional connection/power standard along the way. We are awaiting implementations in consumer electronics, and given the size of Huawei, Hisense, TCL, and other companies, it should soon be commercialized within China and Chinese export targets.
View at TechPowerUp Main Site | Source
The standard's architecture includes a primary data link that can be split into various configurations—such as 6+2 or 1+7 channels—to adapt to different usage scenarios. In addition to its high-bandwidth data channels, GPMI features auxiliary links for device management, cable information, and a limited USB 2.0 connection. The Type-C variant, which has received approval from the USB Association, ensures compatibility with the USB-C ecosystem, helping with the integration for smart TVs and other connected devices. Primarily developed for the domestic market, GPMI also aims to reduce China's dependence on Western-controlled standards and licensing regimes.
Traditional HDMI licensing requires companies to become official adopters, carrying an annual fee of $10,000 for high-volume manufacturers or $5,000 plus a $1 per unit administration fee for low-volume users. All this while imposing per-unit royalties of $0.15 that can decrease to as low as $0.04 when the HDMI logo and HDCP are employed, providing access to the latest specifications, compliance testing, and promotional benefits. Chinese GPMI aims to break away from these chains of licenses and improve the traditional connection/power standard along the way. We are awaiting implementations in consumer electronics, and given the size of Huawei, Hisense, TCL, and other companies, it should soon be commercialized within China and Chinese export targets.
View at TechPowerUp Main Site | Source
