241
China launches HDMI and DisplayPort alternative — GPMI boasts up to 192 Gbps bandwidth, 480W power delivery
(www.tomshardware.com)
this post was submitted on 07 Apr 2025
241 points (95.5% liked)
Technology
68432 readers
11162 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related news or articles.
- Be excellent to each other!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, this includes using AI responses and summaries. To ask if your bot can be added please contact a mod.
- Check for duplicates before posting, duplicates may be removed
- Accounts 7 days and younger will have their posts automatically removed.
Approved Bots
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
This must be for commercial displays where it is beneficial for installation to have power and data over a single cable.
I can't think why I would want power delivery to my PC monitor over the display cable. It would just put extra thermal load on the GPU.
I think it's aimed at TVs in general, not computer monitors. Many people mount their TVs to the wall, and having a single cable to run hidden in the wall would be awesome.
I wonder what the use case is for 480W though. Gigantic 80" screens generally draw something like 120W. If you're going bigger than that, I would think the mounting/installation would require enough hardware and labor that running out a normal outlet/receptacle would be trivial.
In HDR mode they can draw a lot more than that for short peaks
My 50" 1080p LCD draws over 200w...
Headroom and safety factor. Current screens may draw 120w, but future screens may draw more, and it is much better to be drawing well under the max rated power.
In wall power cables need to be rated for it to prevent fire risks. This will need to have thick insulation or be made of a fire resistant material.
Even in that scenario it will complicate the setup. Now your Roku will also have to power your TV? No, any sane setup will have a separate power cable for the TV.
I don't think you'd ever have a peripheral power the tv. The use case I'm envisioning is power and data going to the panel via this single connector from a base box that handles AC conversion, as well as input (from Roku etc) and output (to soundbar etc.). Basically standardizing what some displays are already doing with proprietary connectors.
Passing power through doesn't have to put noticeable load on the GPU. The main problem I see there is getting even more power to the GPU - Nvidia's top cards are already at the melting point for their power connector.
I specifically said thermal load. Power delivery always causes heat dissipation due to I^2^R losses.
That's what I meant. Compared to the power the GPU is actually using, transmission losses for a pass-through should be negligible. If you have a good way to get it to the card in the first place.
The popular use for power delivery through a display cable is charging a laptop from your monitor; it's already very common with Thunderbolt or USB-4 monitors. But 480W seems a bit overkill for that.
Nah, it's for powering the 1000w RTX 6090.
~~Why is that better than usb-c? ~~
Wait... Power the other way. Whoops, I get it.
That already kinda allow this and the actual load is pretty small
Even a big 30 in display is maybe 20 watts
Well, power delivery goes several times that. Laptops are another very useful case for it. It's nice to be able to just have a single display port and power connector
You can do this to an extent, today