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

 

[eek2121]

At $600 I hope to pick one up for the build I want to do for my kids. Hopefully later this year. Also, told you guys it wasn’t going to be $749. 🤣

 

[Shmee]

At $600 I hope to pick one up for the build I want to do for my kids. Hopefully later this year. Also, told you guys it wasn’t going to be $749. 🤣

I agree that $600 MSRP sounds decent. Hopefully actual prices will be similar and stock will be plentiful.

 

[Josh128]

uh, nope.

Some reality to dash your delusions. When the Dow drops, the world follows.

uh, nope.

uh, yep. By far the most consuming per capita nation on the planet. Its not even close, and by logical comparison to other countries is wasteful to a reckless degree.

No.
Price/perf is a worthless metric for halo parts anyway.

Yeah. Projected sales based off of demand are why products are produced and marketed.

 

[Heartbreaker]

If, by any stretch of imagination, AMD comes out with both a good price for the 9070 XT and the volumes to make that price stick, if I see anyone complain that the 9070 is $50 too expensive relative to the XT... I will personally wield the two biggest trouts in Internet history and will bring painful justice to your virtual faces.

Now I'll go make myself some coffee.

I'll complain that 9070 is about $50 too expensive. Because it is. It's 7900XT/7700XT all over again.

Reportedly the 9070 is about 20-25% slower, but it's only about 10% less expensive, which means the 9070 has worse Perf/$ than the card above, AGAIN.

This is just stupid.

 

[Tuna-Fish]

I'll complain that 9070 is about $50 too expensive. Because it is. It's 7900XT/7700XT all over again.

Reportedly the 9070 is about 20-25% slower, but it's only about 10% less expensive, which means the 9070 has worse Perf/$ than the card above, AGAIN.

This is just stupid.

Is it stupid, or is it an effective way to steer sales towards the more expensive option?

 

[carrotmania]

WE'VE NEVER STOPPED INNOVATING

Apart from this time, which we actually told you about

 

[RnR_au]

Just not the same without Lisa Su... she must be getting ready to retire from her AMD CEO role...

 

[maddie]

Is it stupid, or is it an effective way to steer sales towards the more expensive option?

Probably for the initial sales pulse. We should get lower priced 9070 offerings by Q3-Q4.

 

[carrotmania]

Well, that explains RDNA3

 

[Win2012R2]

This is just stupid.

Yields are very good on a very mature N4 process.

 

[Heartbreaker]

Is it stupid, or is it an effective way to steer sales towards the more expensive option?

Just recently they have done it twice for RDNA 3 cards, and after getting bad reviews relented shortly afterward and lowered the price.

So what exactly did it accomplish? If the card is only there to promote sales of the higher model, why lower the price soon after to price the lower model where it should have been in the first place.

 

[jpiniero]

This is why I've been saying they should have done only one model.

Either that or the $599 price is fake or supply of the lower one will be better managed.

 

[poke01]

FSR4 is proprietary

 

[marees]

This is why I've been saying they should have done only one model.

Either that or the $599 price is fake or supply of the lower one will be better managed.

It is only 1 model. The 9070 is just an underclocked 9070xt

 

[carrotmania]

9070 - $549
>20% perf over 9700 GRE (also $549)

 

[carrotmania]

9070XT - $599
>42% perf over 9700 GRE ($549 - ~+9% cost )

 

[poke01]

Price is great.

 

[coercitiv]

Here we go, 12v-2x6 cooled by the GPU fans, all safe and chill.

What's that? It blocks airflow?! Nah, you just can't appreciate active cable cooling. /s

 

[techjunkie123]

I'm sold. 9070XT it is.

Hope the stock levels are good.

FINALLY AMD doesn't miss (at least on paper).

 

[gaav87]

WIN

 

[GTracing]

Dang, RDNA4 is embarrassing the 5070 and 5070 ti with this price point.

 

[carrotmania]

$650 card (AIB OC) vs $750
5% down on RT (ie, nothing) compared to 35-40% last gen
Looks like I'm finally replacing that 1080Ti
Well done AMD

 

[Saylick]

Interesting changes to the RDNA 4 CU.



Vs. RDNA 3

 

[poke01]

Interesting changes to the RDNA 4 CU.

View attachment 118355

Makes RDNA3 look old. Big upgrade

 

[GaiaHunter]

No reason to buy the 9070. If the price of the 9070xt is actually the msrp it isn't fantastic but it is decent.

So 42% over the gre is 7900xtx raster with better RT?