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

 

[Vikv1918]

It is a wishful hope that they see sense.

Maybe at this late stage the best they can do is offer it at $250 or below due to the massive short comings of 8GB. Then it may be a decent pickup for specific cases. The problem with that is the 16GB card will then look super expensive in comparison because that thing will perform properly.

I don't see a way AMD get through with an 8GB variant that does not tarnish the 16GB one in some way, if the product is priced appropriately for its shortcomings the 16GB card will look like a money grab. If the 8GB card is priced according to the BOM cost difference the 8GB version will look terrible.

If I was AMD and it was too late to cancel the 8GB version then I would stop producing 8GB cards so there are no more and I would heavily encourage them to only be sold in bundle deals with other low end AM5 components. That way for those looking at a standalone product they only see a 16GB version at around $350 or something.

There's no need to overthink this IMO. The MLID rumor of 9060 XT 16GB being the most produced version, and the 8GB version getting produced in smaller numbers makes the most sense. A $350 16GB 9060XT would be enough to compete with the 5060 8GB, 5060 Ti 8GB and 5060 Ti 16GB all at once. Similar to how the 9070 XT competes with both the 5070 and 5070 Ti at the same time. There's no need to do put effort into making a 12GB version because the lower 9060 XT does not need to sell in volume in the first place.

Here is

Ah thanks. If this is indeed correct, it means the 9070 XT is on par with the 4070 Ti Super in path tracing in this game. Very impressive.