China’s HDMI Alternative: GPMI Cable for Higher Resolution & 480W Power
Chinese Consortium Proposes New GPMI Interface to Rival HDMI, DisplayPort
A group of more than 50 Chinese companies has introduced a new interface, the General Purpose Media Interface (GPMI), designed to transmit image, sound, data, and power. The consortium hopes GPMI will become a competitor to existing standards like HDMI and DisplayPort.
The Shenzhen 8K UHD Video Industry Cooperation Alliance, which includes major manufacturers such as Huawei, Hisense, and TCL, is backing the GPMI initiative.This support could lead to rapid adoption of the new interface in devices like televisions and monitors.
GPMI Claims Higher Bandwidth, Power Delivery
According to the consortium, GPMI offers superior bandwidth compared to current alternatives. While DisplayPort 2.0+ supports 80 GB/s and HDMI 2.1 offers 48 GB/s (with HDMI 2.2 expected to double that), GPMI’s initial version boasts a bandwidth of 96 GB/s. Furthermore,GPMI incorporates power delivery,providing up to 240 watts through the same cable,a feature not currently offered by its rivals. The interface utilizes a USB-C connector.
Details regarding compatibility with existing devices remain unclear.
GPMI Type-B offers Increased Capacity
in addition to the USB-C based GPMI, a GPMI Type-B version is planned, featuring a larger connector and expanded capabilities. this version is projected to offer a bandwidth of 192 GB/s and power delivery up to 480 watts. According to the consortium, this level of performance is sufficient for transmitting 8K resolution images at a 120 hz refresh rate with 10-bit color depth per channel. They claim that uncompressed graphics of this quality require 119.4 GB/s, leaving ample capacity for audio and other data transmission. The 480-watt power delivery could potentially power high-performance devices such as gaming laptops or desktop graphics cards.
Interface comparison
Here’s a comparison of interface capacities and power delivery:
| Interface | Capacity | Power |
|---|---|---|
| HDMI 2.1 | 48 GB/s | – |
| HDMI 2.2 | 96 GB/s | – |
| DisplayPort 2.0+ | 80 GB/s | – |
| Thunderbolt 4 | 40 GB/s | 100–240 W |
| Thunderbolt 5 | 80-120 GB/s | 100–240 W |
| GPMI Type-C | 96 GB/s | 240 W |
| GPMI Type-B | 192 GB/s | 480 W |
Licensing Details Remain Unclear
The GPMI project has been in development for six years,with the first prototype appearing in 2023. The final specifications are now complete. However,details regarding licensing remain unknown. It is unclear whether GPMI will be a strictly controlled and paid interface like HDMI or an open standard similar to DisplayPort.
Competition Could Benefit Consumers
Increased competition in the display interface market could benefit consumers. While DisplayPort has often been considered technologically superior to HDMI,its adoption has been primarily limited to the PC market. TV manufacturers have largely favored HDMI. The consortium hopes that GPMI will gain traction in future generations of televisions, notably those from Chinese manufacturers.
GPMI vs.HDMI & DisplayPort: Everything you Need to No About the New Display Interface
A new contender has entered the display interface arena! The “General Purpose Media Interface” (GPMI), spearheaded by a consortium of over 50 chinese companies, aims to challenge established standards like HDMI and DisplayPort.In this comprehensive guide, we’ll delve into the details of GPMI, comparing it to its rivals and exploring its potential impact on the consumer market.
What is GPMI?
GPMI, or the General Purpose Media Interface, is a new interface designed to transmit image, sound, data, and power via a single cable. Developed by a Chinese consortium, it seeks to compete with existing standards such as HDMI and DisplayPort, offering perhaps higher bandwidth and additional features like power delivery.
Who is Behind GPMI?
The GPMI initiative is backed by the shenzhen 8K UHD Video Industry Cooperation Alliance, which includes major manufacturers like Huawei, Hisense, and TCL. This backing could play a significant role in GPMI’s adoption, notably in the television and monitor markets.
What are the Key Features of GPMI?
GPMI boasts several key features designed to set it apart from the competition. Here’s a breakdown:
- High Bandwidth: GPMI offers high bandwidth, with the initial version using a USB-C connector supporting 96 GB/s.
- Power Delivery: GPMI integrates power delivery, allowing it to supply up to 240 watts through the same cable (GPMI Type-C).
- Future-Proofing: A Type-B version with a larger connector promises even greater capabilities, including 192 GB/s bandwidth and power delivery up to 480 watts.
How Does GPMI Compare to HDMI and DisplayPort?
Let’s compare GPMI to the standards it aims to replace.
| Interface | Capacity | Power |
|---|---|---|
| HDMI 2.1 | 48 GB/s | – |
| HDMI 2.2 | 96 GB/s | – |
| DisplayPort 2.0+ | 80 GB/s | – |
| Thunderbolt 4 | 40 GB/s | 100–240 W |
| Thunderbolt 5 | 80-120 GB/s | 100–240 W |
| GPMI Type-C | 96 GB/s | 240 W |
| GPMI Type-B | 192 GB/s | 480 W |
As you can see, GPMI promises to deliver competitive, and potentially superior, bandwidth capabilities alongside power delivery, which is absent in moast current iterations of HDMI and DisplayPort.
What Kind of Connector Does GPMI Use?
The initial version of GPMI (Type-C) uses a USB-C connector, which is a familiar and versatile port.The planned Type-B version will use a larger connector.
What are the Potential Uses of GPMI?
GPMI’s capabilities make it suitable for a range of applications:
- High-Resolution Displays: Supporting 8K and beyond resolutions with high refresh rates and color depth (Type-B).
- Gaming devices: Supplying power to gaming laptops and desktop graphics cards (Type-B).
- All-in-One Cable Solution: simplifying connectivity for televisions, monitors, and other multimedia devices by carrying video, audio, data, and power in a single cable.
When Will GPMI Be Available?
The GPMI project has been in progress for six years, with the first prototype appearing in 2023. The final specifications are now complete, so we should expect further announcements regarding its availability soon.
What Are the Licensing Details for GPMI?
This is one of the biggest unknowns surrounding GPMI. currently,the licensing details are unclear. The industry is waiting to learn whether GPMI will be a paid, controlled interface like HDMI or an open standard like DisplayPort. This will greatly affect its adoption rate.
How Could GPMI Benefit Consumers?
Increased competition in the display interface market is ultimately good for the consumer. It can potentially lead to:
- Better Features: Faster bandwidths, improved power delivery, and new functionalities.
- Lower Prices: If competition drives down the costs of components and devices.
- Greater Choice: More options for displays, devices, and connectivity solutions.
Will GPMI Replace HDMI and DisplayPort?
It’s difficult to say definitively whether GPMI will replace existing standards. HDMI is dominant in the TV market. DisplayPort has a strong hold in the PC market. If GPMI can secure widespread adoption by TV manufacturers, especially those in China, it stands a good chance of becoming a significant player.This shift depends on factors such as licensing costs, manufacturer support, and consumer demand.
Where can I learn More About GPMI?
Keep an eye on technology news outlets and industry publications for further announcements and updates. More information is expected as the interface is rolled out and the consortium releases details regarding licensing and partnerships.