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*** The AMD RDNA 4 Rumour Mill ***

humbug said:
I'm completely ignorant to this...
I have DisplayPort 2.1 on my GPU, is that bad? If so how so? My screen is a 1440P 165Hz HDR 10 panel.
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As you go up in versions they support higher bit rates so you don't have to use display rate compression (DRC isn't perfect).

2.1 is meant to support everything up to UBHR 20 (20 Gbit/s per lane), key word there being 'up to' as a graphics card, and cables, can support DP 2.1 but only UHBR 10 or 13.5.

At least that's my understanding of it but I'm not that knowledgable so if i got anything wrong corrections would be welcomed.
 
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GhostDog1981 said:
Why don’t you get a used 4080 super or vanilla? That would be better with superior upscale?
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I have a set budget of £550-£600 if I can't than I won't bother and continue with current card and wait , where can I buy 4080 for £600 ? And it's gonna be used

And I ain't really desperate either
i switch my computer on once a week and play for hour or so , currently playing Kingdom Come: Deliverance II ( which is getting me 80-100fps on ultra once done i probably won't have anything else to play for awhile
 
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uscool said:
I have a set budget of £550-£600 if I can't than I won't bother and continue with current card and wait , where can I buy 4080 for £600 ? And it's gonna be used

And I ain't really desperate either
i switch my computer on once a week and play for hour or so , currently playing Kingdom Come: Deliverance II ( which is getting me 80-100fps on ultra once done i probably won't have anything else to play for awhile
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There was a 4080 FE on the members market for £750. Not sure how much it actually went for? But point taken. Nothing is available at £600 price point that’s any good.

Prolly wait for 5070ti to come down to msrp of £729 which will be superior in most ways to the 9070XT except maybe slower a tad in raster. I’d take the superior feature set and path tracing (and pay £100 more) over the AMD equivalent if the 9070XT is £700 or even £600.
 
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Murphy said:
As you go up in versions they support higher bit rates so you don't have to use display rate compression (DRC isn't perfect).

2.1 is meant to support everything up to UBHR 20 (20 Gbit/s per lane), key word there being 'up to' as a graphics card, and cables, can support DP 2.1 but only UHBR 10 or 13.5.

At least that's my understanding of it but I'm not that knowledgable so if i got anything wrong corrections would be welcomed.
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Ok so it apparently supports UHBR 13.5.

en.wikipedia.org

Radeon RX 7000 series - Wikipedia

en.wikipedia.org en.wikipedia.org

New "Radiance Display" Engine with:
DisplayPort 2.1 UHBR 13.5 support (up to 54 Gbit/s bandwidth)
HDMI 2.1a support (up to 48 Gbit/s bandwidth)
Support up to 8K 165 Hz or 4K 480 Hz output with DSC
12-bit color and Rec. 2020 support for HDR
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Only enough bandwidth for 4K 480Hz, or 8K 165Hz, yeah RIP AMD guess.... :D

Erm? i'm not worried.
 
humbug said:
Ok so it apparently supports UHBR 13.5.

en.wikipedia.org

Radeon RX 7000 series - Wikipedia

en.wikipedia.org en.wikipedia.org



Only enough bandwidth for 4K 480Hz, or 8K 165Hz, yeah RIP AMD guess.... :D

Erm? i'm not worried.
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What does this mean (pretend I’m a child) for the 9070 series? Is it better display port capability than the 7000 series? (Am I missing out lmao the FOMO is setting in!)

I’ve tried reading about this but still end up confused?
 
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humbug said:
All it does is give tech jurnoes ammunition to say AMD's GPU's are overpriced, they will use the fake MSRP to hold AMD's real MSRP against.

Nvidia are smarter than these tech jurnoes, they know what they are doing.
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How do you know AMD's MSRP is real?

Gibbo's already given himself an out to not sell any cards at MSRP (I'm not saying he won't but it's already caveated).
 
so if those recent leaks are to believed it will be similar to nvida in that the 9070xt will have an msrp of $700 but in reality will be around the $1000 mark, ffs that cant be true, they must be placeholder prices, even AMD arnt this dumb (unless intentionally)
 
GhostDog1981 said:
What does this mean (pretend I’m a child) for the 9070 series? Is it better display port capability than the 7000 series? (Am I missing out lmao the FOMO is setting in!)
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I have no idea, all i know is my GPU was perfectly happy driving my 1440P 165Hz HDR10 display and a chatter a couple of pages back said "RIP AMD" for only having a UHBR 13.5 DisplayPort 2.1 standard, not a UHBR 20 standard, but it turns there is a reason my display is happy, the UHBR 13.5 DisplayPort 2.1 standard on my GPU has enough bandwidth to drive up to 8K 165Hz or 4K 480Hz, not even a 5090 can drive those FPS at those resolutions so crisis averted even if the 9000 series doesn't get a Displayport upgrade vs 7000 series.

Good Grief where do people get their ideas from writing crap like that?
 
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GhostDog1981 said:
What does this mean (pretend I’m a child) for the 9070 series? Is it better display port capability than the 7000 series? (Am I missing out lmao the FOMO is setting in!)
Click to expand...

I shall explain it to you as if you were a child [insert Galaxy Quest meme]...

It means 9000-series supports 54GBps over DP 2.0 which is absolute overkill for any normal application. No ones doing 8k @165hz on these card.
 
Tinek said:
Cards can always be cheaper, the cheaper the better (unless it really starts influencing quality and value negatively). But as long as it's reasonable, and most of all, in stock (otherwise scalpers will destroy the value), it would be a progress and down pressure on Nvidia.
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Oh 100% but there's a bigger psychological barrier at 649 than there is at 599, it's the whole reason pennies exist, 599.99 sounds better than 600 only 2 days till we find out though.
michty_me said:
He did also state that he is hearing rumours of retailers pushing prices up into €800 area though for release due to the current ongoing scalping and Nvidia shortages.
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I mean he might as well release breaking news and inform us water is in fact wet.... we've already seen what OCUK done with the 5000 series launch of course they're going to scalp it, hopefully AMD have more supply ready as it's been delayed months but we will see.
 
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Just pointing out again that people are talking about high refresh rates using DSC, which can cause glitching with some monitors.

Dell actually have a pretty good explanation:

What is Display Stream Compression?​

Display Stream Compression can reduce the bandwidth required to transmit high-resolution video signals by compressing the video signal to reduce the amount of data that must be transmitted without compromising the image quality.

When DSC is enabled, the compression ratio varies depending on the resolution and refresh rate of the video signal being transmitted. In general, higher resolutions and refresh rates require higher compression ratios to maintain the same level of image quality. As a result, enabling DSC can increase the maximum resolution and refresh rate that can be supported over a given bandwidth.

DSC can also have some drawbacks. For example, some monitors may not be fully compatible with DSC. This may cause display issues or blanking.
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^ @humbug

I have documented my issues with DSC here. Edit: the only solution for my monitor is to keep it <144hz to stop the issue. Not the end of the world but yeah, annoying.

As a result of this, a 2.1 port supporting 80gb/s is considered essential for my next monitor purchase to go with a 50 series card.
 
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GhostDog1981 said:
There was a 4080 FE on the members market for £750. Not sure how much it actually went for? But point taken. Nothing is available at £600 price point that’s any good.

Prolly wait for 5070ti to come down to msrp of £729 which will be superior in most ways to the 9070XT except maybe slower a tad in raster. I’d take the superior feature set and path tracing (and pay £100 more) over the AMD equivalent if the 9070XT is £700 or even £600.
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That's not £600 :) and probably 2 years used product and hassle with warranty probably

When you'll be able to get 5070ti at MSRP might be able to get £600 9070xt although we still yet to find out the price, I know which I'll go for , also depends on the AIB model
 
Nitefly said:
Just pointing out again that people are talking about high refresh rates using DSC, which can cause glitching with some monitors.

Dell actually have a pretty good explanation:



^ @humbug

I have documented my issues with DSC here. Edit: the only solution for my monitor is to keep it <144hz to stop the issue. Not the end of the world but yeah, annoying.

As a result of this, a 2.1 port supporting 80gb/s is considered essential for my next monitor purchase to go with a 50 series card.
Click to expand...

At 4K what FPS do i need to keep it under to avoid DSC with UHBR 13.5?
 
gpuerrilla said:

Video Bandwidth Calculator - Chen Index

My personal website providing software and resources for learning and reference purposes only.
trychen.com trychen.com
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185 FPS at 4K or 370 FPS at 1440P

Ok, i think that's more than enough, i still don't see where "RIP AMD" comes from.

Ipcasop.png


cIBHyp2.png
 
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