Discussion RDNA4 + CDNA3 Architectures Thread

DisEnchantment · Mar 23, 2022

With the GFX940 patches in full swing since first week of March, it is looking like MI300 is not far in the distant future!
Usually AMD takes around 3Qs to get the support in LLVM and amdgpu. Lately, since RDNA2 the window they push to add support for new devices is much reduced to prevent leaks.
But looking at the flurry of code in LLVM, it is a lot of commits. Maybe because US Govt is starting to prepare the SW environment for El Capitan (Maybe to avoid slow bring up situation like Frontier for example)

See here for the GFX940 specific commits

History for llvm/lib/Target/AMDGPU - llvm/llvm-project

The LLVM Project is a collection of modular and reusable compiler and toolchain technologies. - History for llvm/lib/Target/AMDGPU - llvm/llvm-project

github.com

Or Phoronix

More AMD "GFX940" Enablement Work Landing In LLVM - Phoronix

www.phoronix.com

There is a lot more if you know whom to follow in LLVM review chains (before getting merged to github), but I am not going to link AMD employees.

I am starting to think MI300 will launch around the same time like Hopper probably only a couple of months later!
Although I believe Hopper had problems not having a host CPU capable of doing PCIe 5 in the very near future therefore it might have gotten pushed back a bit until SPR and Genoa arrives later in 2022.
If PVC slips again I believe MI300 could launch before it

This is nuts, MI100/200/300 cadence is impressive.

Previous thread on CDNA2 and RDNA3 here

Question - Speculation: RDNA3 + CDNA2 Architectures Thread

Man I have been dying to make this one for a while now. First rumours for RDNA3 are here so new thread time! Just going to start off with this one for now: kopite7kimi on Twitter: "@VideoCardz Ah, I mean a simple mcm design with 10240 cores is not enough. Because the lift from RDNA2 to RDNA3...

forums.anandtech.com

Saylick · Friday at 6:15 PM

moonbogg said:
Uhuh. Here's another "cube" making the rounds.
View attachment 119241

The first images were of squares and triangles, and now we get an L. Based on what I know about Tetris, it only makes sense the line is next and with it the stock vanishes just as quick.

maddie · Friday at 6:19 PM

moonbogg said:
Uhuh. Here's another "cube" making the rounds.
View attachment 119241

Hang on, haven't you conceded yet? No need for PTSD mitigation, it's only 5 $ this time.

Hail The Brain Slug · Friday at 6:21 PM

maddie said:
Hang on, haven't you conceded yet? No need for PTSD mitigation, it's only 5 $ this time.

I think the issue is we keep bringing up the catfood 'incident' and it triggers his PTSD response

blackangus · Friday at 7:12 PM

moonbogg said:
Uhuh. Here's another "cube" making the rounds.
View attachment 119241

If you zoom in really closely on the background there is a line that says "Moonbogg was here!"

MrTeal · Friday at 8:13 PM

moonbogg said:
Uhuh. Here's another "cube" making the rounds.
View attachment 119241

Kinda like Nvidia MSRPs.

Hans Gruber · Friday at 8:22 PM

If AMD keeps the prices at MSRP and has a good supply of GPU's for the next 6 months. They may get up to 15% of the GPU market share.

poke01 · Friday at 8:22 PM

IEC said:
Got my 9070XTView attachment 119194

SO PRETTY. Love the packaging more than the card lol

poke01 · Friday at 8:24 PM

I would love to get RDNA4 but saving my PC fund towards Zen6 and RDNA5. I feel like with the PS6 also using RDNA5, more games will take RDNA5 as a base in the future

IEC · Friday at 8:24 PM

Battlecruiser operational:

Hail The Brain Slug · Friday at 8:25 PM

IEC said:
Battlecruiser operational:

View attachment 119254

Time for some tokyo drift max power benchmarking memes

IEC · Friday at 8:30 PM

This card goes very well with white-themed rainbow vomit. My niece would LOVE the shiny lights.

Oh, and it include a metal adjustable graphics card support which is like Atlas holding the world. The plastic tip pops off to reveal a screwdriver. Nifty. I see where the $100+ markup comes from.

Has 5V ARGB cable to sync up with your seizure-inducing light show. Pew pew!

Running Unigine Superposition 1080p extreme currently.

IEC · Friday at 8:31 PM

Superposition 1080P Extreme Rage Fury Maxx Pro AI edition:

gdansk · Friday at 8:32 PM

Hans Gruber said:
If AMD keeps the prices at MSRP and has a good supply of GPU's for the next 6 months. They may get up to 15% of the GPU market share.

Umm ackshually analysts suggest they're already back up to 17% because Nvidia refuses to ship.

poke01 · Friday at 8:35 PM

IEC said:
This card goes very well with white-themed rainbow vomit. My niece would LOVE the shiny lights.

Oh, and it include a metal adjustable graphics card support which is like Atlas holding the world. The plastic tip pops off to reveal a screwdriver. Nifty. I see where the $100+ markup comes from.

Has 5V ARGB cable to sync up with your seizure-inducing light show. Pew pew!

Running Unigine Superposition 1080p extreme currently.

View attachment 119255

That’s one big cooler, makes my 4070S 2 fan look like a baby

poke01 · Friday at 8:56 PM

Can anyone with a 9070XT please run a Blender Open benchmark?

IEC · Friday at 9:00 PM

Definitely need 1000 FPS. Definitely.

IEC · Friday at 9:04 PM

poke01 said:
Can anyone with a 9070XT please run a Blender Open benchmark?

It doesn't seem to recognize the 9070XT. At least it isn't listed as 9070XT in the selection list. I think it's running on the integrated Radeon GPU on the 9900X...

IEC · Friday at 9:07 PM

poke01 said:
Can anyone with a 9070XT please run a Blender Open benchmark?

AMD Radeon RX 9070 XT and RX 9070 review: Excellent value, if supply is good

Big AI and ray tracing improvements, but questions about retail supply remain.

www.tomshardware.com

We need to note here that the 9070 cards couldn't run Blender Benchmark right now. Instead, we needed to get a special build of Blender 4.4.0, the full application, that supported the RDNA 4 GPUs. It doesn't appear to have inflated the new AMD GPU results, which end up being slightly ahead of the 7900 XTX and 7900 XT for the two newcomers. Nvidia meanwhile beats AMD's fastest card with the 4070 and above.

Hans Gruber · Friday at 9:12 PM

gdansk said:
Umm ackshually analysts suggest they're already back up to 17% because Nvidia refuses to ship.

Consider Intel is at 0%. Then look at the Steam survey of hardware where Intel is not 0% of market share. I do not trust published numbers by analysts. Steam surveys are real world usage.

Thunder 57 · Friday at 9:14 PM

Hans Gruber said:
Consider Intel is at 0%. Then look at the Steam survey of hardware where Intel is not 0% of market share. I do not trust published numbers by analysts. Steam surveys are real world usage.

Steam surveys are hot garbage.

Tuna-Fish · Friday at 9:16 PM

gdansk said:
Umm ackshually analysts suggest they're already back up to 17% because Nvidia refuses to ship.

It's of note that there were substantial stocks of RDNA3 that sold well over the past three months, not because people particularly wanted them, but because there was such shortage of GPUs on the market. If NV does not ship cards in volume soon, AMD might get a shockingly high second quarter. (It would probably go down again as soon as NV actually ships product to sell.)

Hans Gruber said:
Consider Intel is at 0%. Then look at the Steam survey of hardware where Intel is not 0% of market share. I do not trust published numbers by analysts. Steam surveys are real world usage.

Two things to unpack:

1. The analyst numbers track sales, not install base.
2. The analyst numbers track AIB cards, not integrated.

jpiniero · Friday at 9:17 PM

Tuna-Fish said:
2. The analyst numbers track AIB cards, not integrated.

Yep. I'm sure there's a lot of people using Steam with Intel IGPs.

DaaQ · Friday at 9:29 PM

IEC said:
Battlecruiser operational:

View attachment 119254

Congrats, I find it strange that people complain over 30 dollars. (This should have been 30 dollars cheaper)

When they are going to buy th AIB with the factory overclocks and better coolers ect. ( Not you)

Like when I got my 9800X3D for 479. Oh it was 30 more than the 7800X3d when it launched!!! (X amount of months prior). I was able to backorder from Newegg, I got it 2 weeks earlier than they said it would be here. I mean 30 bucks, for all these ballers. SMH.

Then there is the Tariff threat, that all retailers are pretty much taking advantage of.

Nvidia has no stock, it's because it's selling so well. AMD has no stock it's because they cannot supply enough stock. SMH.

/rant off, congrats on your new equipment.

DaaQ · Friday at 9:31 PM

jpiniero said:
Yep. I'm sure there's a lot of people using Steam with Intel IGPs.

Steam survey is probably registering alot of laptops with dgpu.

poke01 · Friday at 9:34 PM

IEC said:
AMD Radeon RX 9070 XT and RX 9070 review: Excellent value, if supply is good

Big AI and ray tracing improvements, but questions about retail supply remain.

www.tomshardware.com

We need to note here that the 9070 cards couldn't run Blender Benchmark right now. Instead, we needed to get a special build of Blender 4.4.0, the full application, that supported the RDNA 4 GPUs. It doesn't appear to have inflated the new AMD GPU results, which end up being slightly ahead of the 7900 XTX and 7900 XT for the two newcomers. Nvidia meanwhile beats AMD's fastest card with the 4070 and above.

View attachment 119264

At this point I can conclude its AMD's software holding them back a lot in Blender. HIP isn't great.

That said RDNA4 made major improvements to RT and glad to see that is reflecting in Blender when compared to RDNA3.

The 9070 XT is not even beating the 4070 means that Optix has years of optimisation.

Discussion RDNA4 + CDNA3 Architectures Thread

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