Discussion RDNA4 + CDNA3 Architectures Thread

[DisEnchantment]

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

 

[basix]

- CDNA5 is rumored to use same CU and cache structure as RDNA5 (altough different sizes)
- Universal Compression could be a transparent drop-in IP around caches and memory subsystem. Should not require a major rework of the SoC and memory architecture
- Neural Arrays would be a natural fit for ML accelerators

If I had to guess, CDNA5 will share many similarities to RDNA5.
gfx1250 indicates at least a spin-off from RDNA4. But as RDNA5 will arrive some time after CDNA5, gfx1250 for CDNA5 and gfx1300 for RDNA5 somewhat makes sense.

 

[MrMPFR]

I've replied to @basix's comment on the RDNA 5 thread. Can we please continue any Nextgen GPU discussions there and not here xD

 

[SolidQ]

Microsoft Update Catalog

Windows 11 KB5072033 for 25H2 and 24H2

• Gaming performance has been enhanced, particularly for AMD GPU users, with fixes for issues like "GPU hung" and "driver removed" errors, and resolution of a bug that incorrectly flagged supported graphics cards as unsupported.

P.S Ordered for tomorrow Powercolor Hellhound RX 9070XT, will test after new year.

 

[Arielrt17]

So Both, Radeon AI Pro 9700s and 9600D are Fanless Cards for Edge AI, looks like based on the same Navi 48 Die.

https://www.amd.com/en/products/gra.../ai-9000-series/amd-radeon-ai-pro-r9700s.html

https://www.amd.com/en/products/gra.../ai-9000-series/amd-radeon-ai-pro-r9600d.html