Discussion RDNA4 + CDNA3 Architectures Thread

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DisEnchantment

Golden Member
Mar 3, 2017
1,770
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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
Or Phoronix

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

 
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gdansk

Diamond Member
Feb 8, 2011
4,006
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Oh wow, it does fit, I checked the website but missed it. I think it's a lil' dinky of a cooler for 300W if I'm completely honest though.
Yeah, it's probably pretty loud. There's also the ASRock Steel Legend which might fit.

And the Asus Prime
 

Mahboi

Golden Member
Apr 4, 2024
1,057
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Yeah, it's probably pretty loud. There's also the ASRock Steel Legend which might fit.

And the Asus Prime
Oh it's perfect...And we're back to the original problem: STOP MAKING ME BUY
 

gdansk

Diamond Member
Feb 8, 2011
4,006
6,574
136
Seems like the Reaper has OEM clocks? Maybe this one will actually be MSRP? Surely AMD consulted with the AIBs to make sure at least a couple of them had at least 1 SKU at MSRP before making a worldwide make or break announcement about it?
It seems like there are some MSRP cards in China. If there aren't any in your market it may be a government trade policy problem.
 

In2Photos

Platinum Member
Mar 21, 2007
2,376
2,555
136
Liking all the different models available including several white models. The hellhound spectral has my eye if I decide to upgrade. Probably getting my son one first though since he has a GTX1660.
 
Reactions: blckgrffn

RnR_au

Platinum Member
Jun 6, 2021
2,322
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Liking all the different models available including several white models. The hellhound spectral has my eye if I decide to upgrade. Probably getting my son one first though since he has a GTX1660.
idk... seems to me from the beautiful pictures of the AMD reference cards, that the AIB's strong armed AMD into cancelling their reference efforts...

AIB's: "Too stylish!! Noone would buy our RGB rainbows! Please fire the only person with a clue in your famous Marketing department!".

 

Thunder 57

Diamond Member
Aug 19, 2007
3,402
5,625
136
While that is generally true, we shouldn't wait for drivers to mature. AMD is a multi billion Dollar company, if drivers are garbage again than that is close to unacceptable. What you wrote basically sounds like we are at a point where it is acceptable for AMDs drivers to be bad at the beginning and it's great when they mature sometime in the future. However that is not what we should expect from a company like that.

Also looking at RDNA2: 6900XT had 11% more CUs than 6800XT without any other changes: Same clocks, same TDP. Yet it delivered like 8-9% perf at 4K over 6800XT at that same TDP. So RDNA4 scaling seems to be quite meh for now, we will see how N44 turns out later this year.

For now it could be a first indication why other RDNA4 was cancelled, at least seems more likely than just "GB202 too strong, we give up".

And just how well are Black(screen)well drivers doing? That old drivers argument is so tired it hasen't been true in 20 years.
 

blackangus

Senior member
Aug 5, 2022
222
380
106
Im bummed, I really like the Sapphire Nitro + but I cant swing only 2 displayport ports.
Most of the rest of the cards are too gaudy for me.
The renders above would be right up my alley.
 

Josh128

Senior member
Oct 14, 2022
685
1,183
106
Past my silly posts, I do like the huge effort where AMD was really lacking: media consumption, RT, better idle power draw...there's really a lot to like, all the little things that they were behind have been shored up seemingly.
My only 3 metrics left are:
- VR support speed (took SEVEN MONTHS for RDNA 3 to function like RDNA 2 did)
- ROCm support speed (Phoronix is already lamenting that months is too much, and it will be months)
- Broader RDNA 4 features support in 3rd party elements

For the latter, I'm really hopeful that some of the most well-known weaknesses in say Blender actually get pounded away, and that several of the other titles get support before 3 months have to pass. Premiere Pro, Photoshop, etc...
What was said about idle power draw? I must've missed it?
 
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