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Discussion RDNA4 + CDNA3 Architectures Thread

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DisEnchantment

DisEnchantment

Golden Member
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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
github.com

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 github.com
Or Phoronix

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

www.phoronix.com 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 :grimacing:

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

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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 forums.anandtech.com
 
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Here is in game bench 7900XTX OC vs 4090 OC

add screen
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gaav87 said:
AI exp is so bad on AMD i gave up like 8months ago even bing is better... In the begining of AI craze like 2+ years ago u litterary had to know python to use it with way way way way worse results and perf vs rtx 3000 and 4000. You have so many models for nvidia its not even fair.
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This is so very very out of date. There are plenty of AI backends that can run all the popular models on AMD, Intel and Nvidia cards - even simultaneously.

AMD is not suffering from a lack of models. They are suffering from the teething problems of getting rocm installed.
 
adroc_thurston said:
I don't think he could or was smart enough for that.
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The RTG marketing person who no doubt had a hand in this 'leak' could though, and I wouldn't put it above them to do that.

Good to know that Q1 2025 means January and not April though, suggests that they're at least somewhat confident of how this will perform.
 
insertcarehere said:
The RTG marketing person who no doubt had a hand in this 'leak' could though, and I wouldn't put it above them to do that.
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evulz AMD ninjas again (you're really overestimating how much they care and how competent they are).
insertcarehere said:
Good to know that Q1 2025 means January and not April though, suggests that they're at least somewhat confident of how this will perform.
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the h/w thingy has been ready for eons.
 
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