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The “General Purpose Media Interface” (GPMI)

Apr 7th, 2025 17:38 EDT

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Monday, April 7th 2025

China Develops HDMI Alternative: 192 Gbps Speeds and 480 W Power Delivery

by AleksandarK Today, 09:33 Discuss (30 Comments)

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. Sources: HKEPC, via ComputerBase.de

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30 Comments on China Develops HDMI Alternative: 192 Gbps Speeds and 480 W Power Delivery

1 to 25 of 30Go to Page12#1Quicks

Cool now we going to have more things to worry about catching fire. Posted on Apr 7th 2025, 9:59 Reply#2ncrs

Maybe this will force HDMI Forum into breaking from making stupid decisions likeforbidding AMD from releasing Linux support for HDMI 2.1… Posted on Apr 7th 2025, 10:00 Reply#3Chaitanya

QuicksCool now we going to have more things to worry about catching fire.

HDMI needs to go the way of dodo and as long as alternatives exist it should be a good thing for consumers. My USB PD cable and charger both are made in China by Ugreen and its working perfectly fine. Posted on Apr 7th 2025, 10:02 Reply#4bitsandboots

The image they used to show that connector plugging into that PC is either AI assisted or the crustiest meltiest image they could find. Posted on Apr 7th 2025, 10:21 Reply#5Chomiq

X doubt about running 480 W through essentially USB-C plug but if they can actually deliver 192 Gbps that would be something. Posted on Apr 7th 2025, 10:51 Reply#6Chaitanya

ChomiqX doubt about running 480 W through essentially USB-C plug but if they can actually deliver 192 Gbps that would be something.

Even if its 240W max, it should be quite useful for powering laptops and mini PCs no need for separate power and display cable. Posted on Apr 7th 2025, 10:55 Reply#7_roman_

DP only. Everything else should die. Did we not already learn from all those connectors from television and monitors. LVDS should also die in notebooks.
Did we not learn from scart and televisions that television connections are not really fit for purpose? Posted on Apr 7th 2025, 11:04 Reply#8Zareek

This won’t be confusing at all with USB-C already carrying DP. I’m totally sick of seeing HDMI ports dominate PC video, DP is way better IMO. I’m not sure how yet another standard is going to help. Posted on Apr 7th 2025, 11:24 Reply#9TheLostSwede

News Editor

ChaitanyaEven if its 240W max, it should be quite useful for powering laptops and mini PCs no need for separate power and display cable.

USB-C already does that… Posted on Apr 7th 2025, 11:38 Reply#10Vayra86

Looks neat. But why Posted on Apr 7th 2025, 11:42 Reply#11Crackong

USB-C already does it all. Posted on Apr 7th 2025, 11:45 Reply#12Assimilator

The type-C model is a bit of a head-scratcher, but the type-B is very interesting. Posted on Apr 7th 2025, 11:56 Reply#13Tek-Check

ncrsMaybe this will force HDMI Forum into breaking from making stupid decisions likeforbidding AMD from releasing Linux support for HDMI 2.1…

This new interface will shake up the industry in a few years, initially in China, and then wider. HDMI Licensing body will seriously need to step-up the game.

CrackongUSB-C already does it all.

Clearly, it doesn’t. USBIF certified their USB-C part of the spec at 96 Gbps and 240W, which is half of capability of its bigger brother USB-B. Here are some prototypes.
Posted on Apr 7th 2025, 12:02 Reply#14Quicks

ChaitanyaHDMI needs to go the way of dodo and as long as alternatives exist it should be a good thing for consumers. My USB PD cable and charger both are made in China by Ugreen and its working perfectly fine.

Are you pulling 480 Watts of power through those cables? Posted on Apr 7th 2025, 12:05 Reply#15Tek-Check

Here is one prototype of GPMI connect box. There should be a few female inputs on the other side. The male side supposedly goes directly into TV?
Let’s see when final designs hit the market.

Posted on Apr 7th 2025, 12:06 Reply#16Assimilator

QuicksAre you pulling 480 Watts of power through those cables?

Nobody is. Did you have a point? Posted on Apr 7th 2025, 12:06 Reply#17Quicks

AssimilatorNobody is. Did you have a point?

Yes, these one’s are rated upto 480 Watts. If a Nvidia 4090 that draw 450 Watts cables melt. What do you think will happen to these cables? Posted on Apr 7th 2025, 12:08 Reply#18Assimilator

QuicksIf a Nvidia 4090 that draw 450 Watts cables melt.

Which hasn’t happened. Do try to educate yourself before spreading FUD. Posted on Apr 7th 2025, 12:10 Reply#19Tek-Check

ZareekThis won’t be confusing at all with USB-C already carrying DP. I’m totally sick of seeing HDMI ports dominate PC video, DP is way better IMO. I’m not sure how yet another standard is going to help.

HDMI does not “dominate” PC video. Nonsense. It is DP ports that dominate and are more diverse, offered as traditional DP port, over USB-C and as eDP for built-in screens. Vast majority of motherboards offer both HDMI and DP ports. All CPUs by default support DP signal and HDMI signals are often derived from it with extra chips, like in consoles. Almost every single GPU on the planet has three DP ports and one HDMI. There are a handful of GPUs with two HDMI ports. I have one from Sapphire with two ports, as I need connections to 4K/120 TV and to AVR for lossless sound. Other than that, it’s DP everywhere. DP is even coming back to TVs. New models of Hisence will feature MediaTek’s Pentonic 800 SoC with three HDMI and one DP port. Posted on Apr 7th 2025, 12:17 Reply#20ncrs

AssimilatorWhich hasn’t happened. Do try to educate yourself before spreading FUD.

It absolutely can happen on a 4090 since it lacks line balancing due to everything being one line “logically”. You can educate yourself with this Buildzoid’s video for example. Basically if 5 connections fail for whatever reason then the card will still try to draw 450W over the last remaining cable. Posted on Apr 7th 2025, 12:26 Reply#21TheinsanegamerN

ncrsIt absolutely can happen on a 4090 since it lacks line balancing due to everything being one line “logically”. You can educate yourself with this Buildzoid’s video for example. Basically if 5 connections fail for whatever reason then the card will still try to draw 450W over the last remaining cable.

Unlike the 12v connector, USB C has this thing called a handshake. No USB C charger will blindly set full power, the host device has to communicate what it can do, or it falls back to 5v mode. Posted on Apr 7th 2025, 12:35 Reply#22TechLurker

At this point, the USB consortium should just adopt it as a standard as USB-M (Multipurpose, Multifunction, Multi-etc). Posted on Apr 7th 2025, 12:37 Reply#23dir_d

I think this is cool, we need something besides HDMI(restrictive) and DP(can’t make up their minds) to pull us into the future. This Type-B seems interesting. Even Type-C is great because uses existing connector and it’s just encoding the bits like DP, thunderbolt and others. Posted on Apr 7th 2025, 13:28 Reply#24Arpeegee

dir_dI think this is cool, we need something besides HDMI(restrictive) and DP(can’t make up their minds) to pull us into the future. This Type-B seems interesting. Even Type-C is great because uses existing connector and it’s just encoding the bits like DP, thunderbolt and others.

I completely agree with this, HDMI should have died a decade ago when it ruined 4K standards and restricted access. DP could have taken over but they were too focused on PC when they should have invested in the tech space as a whole, including televisions.

China or not, someone had to do it. Posted on Apr 7th 2025, 14:18 Reply#25Tek-Check

ArpeegeeDP could have taken over but they were too focused on PC when they should have invested in the tech space as a whole, including televisions.

VESA has nothing to do with rejection of DP by a consortium of TV and home theatre companies. It’s a corporate behemoth that wanted guarded access to HDMI. It will be over soon. Posted on Apr 7th 2025, 14:35 Reply1 to 25 of 30Go to Page12

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