AMD's next-gen UDNA graphics cards will support up to 80 Gbps HDMI 2.2 connectivity

[DragonSlayer101]

Something to look forward to: AMD has reportedly been working on its next-generation GPU architecture for at least two years. The new architecture will be called UDNA, replacing the RDNA name, and is expected to deliver significantly faster performance than RDNA 4. A tipster has now shared details about the rumored HDMI configuration of the first-generation UDNA GPUs.

According to Kepler_L2, UDNA GPUs – codenamed GFX13 – will support 64 Gbps and 80 Gbps bandwidths over HDMI 2.2 connections. If the report is accurate, it would mean that AMD's next-generation GPUs won't fully utilize the potential of HDMI 2.2, which supports bandwidths of up to 96 Gbps – also referred to as Ultra96.

HDMI2.2 64G and 80G 🧐

– Kepler (@Kepler_L2) June 19, 2025

GFX13 GPUs will not support Ultra96, despite adopting the HDMI 2.2 standard, because they won't utilize the Fixed Rate Link technology that boosts the maximum data transfer rate to 96 Gbps. It's unclear why AMD has chosen not to offer Ultra96 connectivity with its next-gen graphics cards, but it could be a cost-saving measure.

According to the HDMI Forum, the enhanced 96 Gbps bandwidth supports uncompressed video at extremely high resolutions and refresh rates – such as 4K at 480 Hz and 8K at 240 Hz with full 4:4:4 chroma sampling. It can even handle 10K and 12K video at up to 120 Hz, potentially making it a valuable tool for niche professional use cases.

AMD is rumored to launch its UDNA graphics cards in 2026, targeting both gamers and professionals. Reports suggest that Sony's PS6 will also use UDNA graphics, although it's unclear whether the CPU will be based on Zen 4 or Zen 5 architecture.

AMD confirmed last year that it will once again unify its gaming and data center GPU architectures, having split them into RDNA (for gaming) and CDNA (for data centers) in 2020. The company hopes that the combined UDNA architecture will make it easier for developers to optimize GPUs for different use cases.

The HDMI 2.2 standard was officially published by the HDMI Forum during CES 2025 in January. The new standard is backward compatible with older HDMI connectors, so it will work with any existing HDMI port.

However, taking advantage of all the best HDMI 2.2 features will require new Ultra96 Certified cables. The latest standard is likely to be incorporated into new devices in the near future, with compatible cables expected to launch in the third or fourth quarter of this year.

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AMD's next-gen UDNA graphics cards will support up to 80 Gbps HDMI 2.2 connectivity

 

[Squid Surprise]

Well, U is a 3 letter improvement from R so I expect big improvements… maybe enough to only lose marginally to Nvidia?

 

[yRaz]

Well, U is a 3 letter improvement from R so I expect big improvements… maybe enough to only lose marginally to Nvidia?

A 5090 is about 50 hours of my time. I will never spend more than 20 hours of my time on a graphics card. I don't look at the price, I look at all purchases in terms of hours of my time they cost me. I think many people would spend differently if they took that approach

 

[Squid Surprise]

A 5090 is about 50 hours of my time. I will never spend more than 20 hours of my time on a graphics card. I don't look at the price, I look at all purchases in terms of hours of my time they cost me. I think many people would spend differently if they took that approach

Depends on how many hours it will save though… a 5090 might be 50 hours of your time but… if it saves you 100 hours, then it’s worth it.

 

[yRaz]

Depends on how many hours it will save though… a 5090 might be 50 hours of your time but… if it saves you 100 hours, then it’s worth it.

It'll probably take 500 hours away from me, but I get where you're coming from. I make my money in commercial construction, I gave up on IT as a job in my first year of college. I started to hate computers and it was nolonger my way of decompressing. I would probably make a pretty good system admin or network engineer, but computers will be always remain a hobby for me. I have a cool enough job and I can always walk away from my homelab if I'm not in the mood. Construction is a *****, but I get 3-4 paid months off a year that just so happen to be the cheapest months a year to visit my favorite states in the south east and south west. To me, that's worth way more than a 90 class card, even an 8GB 9060

 

[Rumiku]

A 5090 is about 50 hours of my time. I will never spend more than 20 hours of my time on a graphics card. I don't look at the price, I look at all purchases in terms of hours of my time they cost me. I think many people would spend differently if they took that approach

Hmm. This is a decent way of looking at spending. It may not work in all circumstances, but a solid metric in measuring the cost of yourself compared to your material things you wish to acquire.

+1

 

[Squid Surprise]

It'll probably take 500 hours away from me, but I get where you're coming from. I make my money in commercial construction, I gave up on IT as a job in my first year of college. I started to hate computers and it was nolonger my way of decompressing. I would probably make a pretty good system admin or network engineer, but computers will be always remain a hobby for me. I have a cool enough job and I can always walk away from my homelab if I'm not in the mood. Construction is a *****, but I get 3-4 paid months off a year that just so happen to be the cheapest months a year to visit my favorite states in the south east and south west. To me, that's worth way more than a 90 class card, even an 8GB 9060

Hmm. This is a decent way of looking at spending. It may not work in all circumstances, but a solid metric in measuring the cost of yourself compared to your material things you wish to acquire.

+1

It’s the only way I can (barely) justify my system… I can finish my various tasks FAR faster with my 7980x + 4090 than I could with a “regular” PC… as I intend to keep it for 10 years or so, I feel it’s “necessary”…

 

[rmcrys]

A 5090 is about 50 hours of my time. I will never spend more than 20 hours of my time on a graphics card. I don't look at the price, I look at all purchases in terms of hours of my time they cost me. I think many people would spend differently if they took that approach

Basically you came to tell the story of your life. You left IT BLA BLA BLA Who cares?

The thing is: as with everything, you have multiple options for each case and you buy what you need or can pay. A professional that needs you acceleration buys the best money can buy as it will make more in less time; a gamer supported by their parents eventually a reasonable price/performance option.

 

[yRaz]

Basically you came to tell the story of your life. You left IT BLA BLA BLA Who cares?

The thing is: as with everything, you have multiple options for each case and you buy what you need or can pay. A professional that needs you acceleration buys the best money can buy as it will make more in less time; a gamer supported by their parents eventually a reasonable price/performance option.

I dont remember asking anyone to care. I love tech and I come here to talk about tech with other people who love tech

 

[Liranan]

A 5090 is about 50 hours of my time. I will never spend more than 20 hours of my time on a graphics card. I don't look at the price, I look at all purchases in terms of hours of my time they cost me. I think many people would spend differently if they took that approach

62 hours of my time but there's no way I'm spending that much money to feed their greed. There is something called principles that most people have never heard of.

Going to wait for UDNA and see what AMD release, will skip it if it's not worth upgrading to from my 6800.

 

[yRaz]

62 hours of my time but there's no way I'm spending that much money to feed their greed. There is something called principles that most people have never heard of.

Going to wait for UDNA and see what AMD release, will skip it if it's not worth upgrading to from my 6800.

Im holding off on my build for now. I dont play many games anymore and my 6700xt is enough for now. It's definitely showing it's age, and its way than the 1050ti I had to buy when my Asus 1080ti died and they refused to warranty it. Im tempted by the 9070xt right now, but theyre like $150 over MSRP right now and I'm cheap as hell

 

[Theinsanegamer]

A 5090 is about 50 hours of my time. I will never spend more than 20 hours of my time on a graphics card. I don't look at the price, I look at all purchases in terms of hours of my time they cost me. I think many people would spend differently if they took that approach

You don't look at price, you just look at hours of your time....which is still a price.

 

[yRaz]

You don't look at price, you just look at hours of your time....which is still a price.

Yes, but I feel that looking at cost in terms of hours of my time changes how I make purchases. Forget about our fake money that changes value all the time, the way I value my time will never change. If anything, my time becomes more valuable the older I get and im not even that old yet.

 

[Neatfeatguy]

Seeing "UNDA" only makes think of Ndnd from Futurama's name.

 

[NumberNine]

8GB VRAM

 

[ghosty]

A 5090 is about 50 hours of my time. I will never spend more than 20 hours of my time on a graphics card. I don't look at the price, I look at all purchases in terms of hours of my time they cost me. I think many people would spend differently if they took that approach

If you want to put it like that...
Over here on Iceland it costs me 1.12 months of my disability payments.

 

[Burty117]

Looking forward to AMD improving a little bit more.

Will we see a proper high end competitor again? Something to replace the 7900XTX?

I’m planning on building a box for the main TV but want it running Linux, AMD seem to be the only people switched on when it comes to Linux drivers.

 

[CMP01]

If you want to put it like that...
Over here on Iceland it costs me 1.12 months of my disability payments.

Y'know, I had to look cos I was sure Iceland used the Euro... but pardon me lol.
That's a lot of ISK for a 5090 then, assuming the going Nvidia pricing... which we all know has totally been manipulated to reach the points it does.
Also now curious what Icelandic disability is like cos such matters in the UK have been fraught.

 

[ghosty]

Y'know, I had to look cos I was sure Iceland used the Euro... but pardon me lol.
That's a lot of ISK for a 5090 then, assuming the going Nvidia pricing... which we all know has totally been manipulated to reach the points it does.
Also now curious what Icelandic disability is like cos such matters in the UK have been fraught.

Import costs are usually a bit high here, due to shipping costs, and 24.5% VAT on top of everything.
And.. the disability system isn't particularly great. My income rates as bottom 5-10% of the job market. Can be depressing, even more so when you can have your payments docked for having some savings on bank and earning interests on those. Literally being punished for not being in deep debt.

 

[CMP01]

Import costs are usually a bit high here, due to shipping costs, and 24.5% VAT on top of everything.
And.. the disability system isn't particularly great. My income rates as bottom 5-10% of the job market. Can be depressing, even more so when you can have your payments docked for having some savings on bank and earning interests on those. Literally being punished for not being in deep debt.

Ah, much the same here then.

Both re VAT, though the UK overall is probably a larger market so that may help imports re supply aso...

... and much the same difference for the disability side. Payments are low enough that even the component that covers services the NHS don't provide and is to help maintain independence gets used for the spiralling cost of living. Same again re savings/debt, it can make it very difficult to save, usually by going without elsewhere, towards QoL improvements if you can't make eligibility for credit due to being on disability. We are actually having a crisis rn with the current Govt attempting a significant cut to disability welfare and there's been somewhat of a mutiny in parliament over it. They're voting on it tomorrow so we will see but I hope it turns out ok for the ppl I know.

Anyway, here's to your health and better days.