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

 

[gaav87]

Why does it say "only available on 9070 series" ??

Idk ask kepler i said on saturday:

 

[poke01]

https://videocardz.com/pixel/amd-announces-fsr4-available-only-on-radeon-rx-9070-series

full article. this is AMD forging its own cheapskate attitude. N44 is crap, do not buy if this true.

 

[poke01]

ok I think it’s available on N44 but since that part is not releasing soon it’s omitted from the endnote. That’s my optimistic view.

 

[SolidQ]

only 9070? What about 9600XT N48 12gb version?

 

[beginner99]

AMD released some dibits of info:

Loading…

videocardz.com

But no performance slides. I guess the GPUs are still quite a while away, or the comparison is not that flattering to RDNA4. Might also just wait for Nvidia to make the next move. Either way this probably means we still have to wait quite a bit until we get more info

looking at how gigantic all the different models are, I'm a bit confused. Either performance will be better than expected or performance/watt will be way worse than expected. Given it's AMD...

 

[gaav87]

3x8pin ?

 

[SolidQ]

ok I think it’s available on N44 but since that part is not releasing soon it’s omitted from the endnote. That’s my optimistic view.

Yeah, have same thoughts

• Better media encoding quality (2nd-generation AMD Radiance Display Engine)

That interesting, we will see comparision


Anyone have info how many TOPS have RDNA3 cards?

 

[basix]

Anyone have info how many TOPS have RDNA3 cards?

How to accelerate AI applications on RDNA 3 using WMMA

This blog is a quick how-to guide for using the WMMA feature with our RDNA 3 GPU architecture using a Hello World example.

gpuopen.com

- INT8: 2x FP32 FLOPS
- INT4: 4x FP32 FLOPS

 

[SolidQ]

I'm looking at this picture. Only one 9070 and have 2 coolers. Feels like 9070 30% less perfomance

 

[Meteor Late]

Better media encoding quality? does this include finally supporting 4:4:4 in decode and encode? something Nvidia and Intel support for ages.

 

[Heartbreaker]

Also i just heard all games that have fsr3.1 will work on fsr4

Not many games have FRS 3.1 though. It's mainly games from a Sony Studio.

Why does it say "only available on 9070 series" ??

Because for now, that's the only series AMD is releasing. We may never see 080 cards, and 060 cards may be quite a bit further away.

 

[jpiniero]

Because for now, that's the only series AMD is releasing. We may never see 080 cards, and 060 cards may be quite a bit further away.

But if N44 supported it, don't you think they would have just said 9000 series rather than 9070?

 

[Heartbreaker]

But if N44 supported it, don't you think they would have just said 9000 series rather than 9070?

Maybe there will be 9050 that's a rebrand RDNA 3 card... It wouldn't be the first time.

 

[SolidQ]

Not many games have FRS 3.1 though

Here not full list
ARK: Survival Ascended
Bellwright
Beyond Hanwell
Call of Duty: Black Ops 6
Caravan SandWitch
DON'T SCREAM
DUCKSIDE
Enotria: The Last Song
EVERSPACE 2
Farming Simulator 25
FINAL FANTASY XVI
Frostpunk 2
God of War Ragnarök
Gori: Cuddly Carnage
GreedFall II: The Dying World
Horizon Zero Dawn Remastered
Horizon Forbidden West Complete Edition
Creatures of Ava
Dungeon Stalkers
FlipScapes
Funko Fusion
Ghost of Tsushima DIRECTOR'S CUT
Hunt: Showdown 1896
Incursion Red River
Lost Records: Bloom & Rage
Manor Lords
Marvel Rivals
Marvel’s Spider-Man: Miles Morales
Marvel’s Spider-Man Remastered
MechWarrior 5: Clans
Microsoft Flight Simulator 2024
New Home: Medieval Village
No More Room in Hell 2
Pine Harbor
Predator: Hunting Grounds
Ratchet & Clank: Rift Apart
REMNANT II
Satisfactory
SILENT HILL 2
S.T.A.L.K.E.R. 2: Heart of Chornobyl
Test Drive Unlimited Solar Crown
The Axis Unseen
Warhammer 40,000: Darktide
Warhammer 40,000: Space Marine 2
Tiny Glade
Until Dawn

 

[jpiniero]

Maybe there will be 9050 that's a rebrand RDNA 3 card... It wouldn't be the first time.

Possibly. But it sort of gels with the idea that AMD slashed N44's die size so they actually make money.

 

[gdansk]

Possibly. But it sort of gels with the idea that AMD slashed N44's die size so they actually make money.

On the assumption almost no one DIY will buy it they cut everything to get OEM deals in laptops. Which they won't get. Hard to understand the market for that part.

 

[poke01]

So 9070 XT is on par with 4070 Ti in RT?

 

[Saylick]

View attachment 114325

So 9070 XT is on par with 4070 Ti in RT?

Given that they position it against their own 7900XT implies it likely won’t be cheaper than $650. At that price, it’s not going to do anything to shake up the market and I expect consumers will be pretty meh about it. Maybe even angry since people still have this notion that it’s AMD’s job to keep Nvidia in check, all while regrettably paying the Nvidia tax at the end of the day.

 

[SolidQ]

So 9070 XT is on par with 4070 Ti in RT?

that is strange, because XTX lose to 4070ti

 

[gaav87]

View attachment 114325

So 9070 XT is on par with 4070 Ti in RT?

Saw this on friday RIP -5% 4080 chinese slower than 4070tiS

 

[Keller_TT]

Given that they position it against their own 7900XT implies it likely won’t be cheaper than $650. At that price, it’s not going to do anything to shake up the market and I expect consumers will be pretty meh about it. Maybe even angry since people still have this notion that it’s AMD’s job to keep Nvidia in check, all while regrettably paying the Nvidia tax at the end of the day.

I'm guessing the non-XT 9070 to be on par with 6900 XT and to be be priced at $450 like 7700 XT was, for a 25% raster boost and prob 50% RT boost. The 9070 XT will probably go for $580 for MBA card like the comparative 6800 launch price (crypto inflated price filled by actual inflation + wafer costs), and AIB cards with more OC, TDP headroom could push it to 4080 class raster and price it for $650.
So, this would cover the $449-$649 range of leaked/speculated estimates.

 

[gaav87]

I'm guessing the non-XT 9070 to be on par with 6900 XT and to be be priced at $450 like 7700 XT was, for a 25% raster boost and prob 50% RT boost. The 9070 XT will probably go for $580 for MBA card like the comparative 6800 launch price (crypto inflated price filled by actual inflation + wafer costs), and AIB cards with more OC, TDP headroom could push it to 4080 class raster and price it for $650.
So, this would cover the $449-$649 range of leaked/speculated estimates.

If its 580$ MBA that means ~650$ for nitro+ noone will buy this trash.

 

[blckgrffn]

If its 580$ MBA that means ~650$ for nitro+ noone will buy this trash.

I mean… why? There will be be no other AMD options at that price range and assuming 4xxxx series cards 4070+ are all being drawn down and 5xxx series will set new tiers, the options might suck.

If Nvidia undercuts them then I would expect them to adjust then.

And I expect these all to have some tariff protection built in.

Also, my 7900 XTX came yesterday, hoping we get the actual launch in the return window.

 

[Keller_TT]

If its 580$ MBA that means ~650$ for nitro+ noone will buy this trash.

Might well be the case. But I don't see AMD undercutting NV by too much if they think they can stay close in performance, efficiency, and ML trickery.
At least they should've learned from 7700 XT. It was ditto a 3070 across the board (never mind +4 GB) and competed at similar market price without the green sticker, DLSS, NV productivity strength.

 

[gaav87]

I mean… why? There will be be no other AMD options at that price range and assuming 4xxxx series cards 4070+ are all being drawn down and 5xxx series will set new tiers, the options might suck.

If Nvidia undercuts them then I would expect them to adjust then.

And I expect these all to have some tariff protection built in.

Also, my 7900 XTX came yesterday, hoping we get the actual launch in the return window.

Well you u can get used 4070tis for this price... And i saw 7900xt openbox with full 36month warranty cheaper than that with 20GB vram. I would not recommend this card to anyone for that price even if 5070 is 699$