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

 

[QuickyDuck]

It seems they don't want to be shadowed by 5090 and 5080 so just let them go first.
Rumor has it that there's not much volume of 5090 and 5080 early on and they don't overlap with 9070s thus minimum effect. AMD is targeting value this time. If they get price and performance right, people will come.

At the end of the day its AMD fans that get hurt by the delay.

 

[gdansk]

Do those indicate a team that is confident they have a good product?

I don't think it indicates much. There are a dozen different reasons to delay a few months.

You may be right that it's just garbage product but then why not just announce it as soon as they know where they need to price it? They already know that price. And CES was the best place to hide it between AI crap.

 

[marees]

Technically crypto boom is just starting. Coins are way up in price. I bet you mean GPU mining boom? ETH and a few other algos made GPU mining profitable, but now it really isn't at all. Any mining is usually on ASICs, though CPUs can do decently at times.

I meant the last boom only

If AMD didn't have an oversupply of RDNA 3 then they could have launched RDNA 4, 6 months ago

 

[blckgrffn]

The 7800 XT was delayed 8 months for an even worse reason. They're getting better, unironically. 2 months is an improvement.

I laugh a sad laugh. I guess I’ll warm myself up with this XTX until 2027 to make myself feel better.

 

[adroc_thurston]

And somehow, these same unwashed masses would see a shiny new Nvidia GPU and think to themselves "let's wait for team Red instead?"

No, the shiny new NVidia GPU just sucks balls and they gotta leverage that.

Launching first at least gives first dibs at media coverage, which AMD desperately needs..

It only works when you have the halo.

and did ok

they did not do ok, unless you mean selling stuff at a loss.

Do those indicate a team that is confident they have a good product?

No they're just surprised the comp sharted itself.

 

[RnR_au]

Looking at all the events that have transpired though (the last-minute CES pulled launch, the unconvincing responses from AMD, the subsequent further delayed launch from Jan to March w/ clear evidence that ppl have cards already).. Do those indicate a team that is confident they have a good product?

It indicates that they are cautious.

 

[insertcarehere]

It indicates that they are cautious.

And this caution comes at the expense of making distributors and manufacturers tie down capital for an extra 2 months with product that they want to convert into Cash (real good for working relationships, that), as well as in the meantime getting at best, question marks as to what their strategy is, if not far worse responses through the community. Is it worth it?

 

[RnR_au]

And this caution comes at the expense of making distributors and manufacturers tie down capital for an extra 2 months with product that they want to convert into Cash (real good for working relationships, that), as well as in the meantime getting at best, question marks as to what their strategy is, if not far worse responses through the community. Is it worth it?

AMD clearly thinks it is.

 

[gdansk]

Is it worth it?

Remains to be seen, doesn't it?

It's petty hard to make a product worse by delaying it a few weeks.

 

[IEC]

Considering how badly AMD has fumbled the last several GPU launches, I'll be pleasantly surprised if the 9070/XT are priced right on Day 1.

After being an early adopter of RDNA2 and RDNA3 I'm pretty sure I'll skip RDNA4.

 

[gdansk]

Considering how badly AMD has fumbled the last several GPU launches, I'll be pleasantly surprised if the 9070/XT are priced right on Day 1.

After being an early adopter of RDNA2 and RDNA3 I'm pretty sure I'll skip RDNA4.

It's slower than RDNA3 so no reason to upgrade.

 

[poke01]

Considering how badly AMD has fumbled the last several GPU launches, I'll be pleasantly surprised if the 9070/XT are priced right on Day 1.

After being an early adopter of RDNA2 and RDNA3 I'm pretty sure I'll skip RDNA4.

You have a 4080 right? If so there is no point in getting RDNA4. It’s a sidegrade in raster and a downgrade in RT and software is not as mature as the DLSS4 feature set.

 

[akugami]

I don't get, why people think that this delay is something bad? Imho, AMD absolutely not in a rush, time is fully for their benefit

Disagree.

I'm in the market for new video cards. While I don't game myself much anymore, the last major game I played was finishing Starcraft 2, my kids are at the age where I want to get them something that will last a few years. And that something increasingly looks like Geforce RTX 5070 TI's, which will likely last them 4-5 years easy with excellent 1440p performance.

Relatively speaking, while expensive, something like a 5070 TI is only about $200'ish per year if amortized over a 4 year period.

I'm ready to buy now. If AMD is not ready now and want me to wait another quarter, I may very well just grab three 5070 TI's.

How many others are in similar boats of wanting/needing new graphics cards and don't want to wait?

 

[gdansk]

I'm ready to buy now. If AMD is not ready now and want me to wait another quarter, I may very well just grab three 5070 TI's.

5070 Ti is "go" in February. 9070 XT in March. Same quarter if that's how you're counting. 🤔

 

[In2Photos]

Disagree.

I'm in the market for new video cards. While I don't game myself much anymore, the last major game I played was finishing Starcraft 2, my kids are at the age where I want to get them something that will last a few years. And that something increasingly looks like Geforce RTX 5070 TI's, which will likely last them 4-5 years easy with excellent 1440p performance.

Relatively speaking, while expensive, something like a 5070 TI is only about $200'ish per year if amortized over a 4 year period.

I'm ready to buy now. If AMD is not ready now and want me to wait another quarter, I may very well just grab three 5070 TI's.

How many others are in similar boats of wanting/needing new graphics cards and don't want to wait?

Isn't the 5070 release scheduled for late February? And do you think it will be easy to get them on release day? You're likely going to have to wait for that card too.

 

[IEC]

You have a 4080 right? If so there is no point in getting RDNA4. It’s a sidegrade in raster and a downgrade in RT and software is not as mature as the DLSS4 feature set.

I also have older cards including RTX 2070 and Radeon VII.

 

[blckgrffn]

Isn't the 5070 release scheduled for late February? And do you think it will be easy to get them on release day? You're likely going to have to wait for that card too.

Or the “good” AIB cards will be $50-$100 more and only the barest minimum cards will be available at MSRP. If frame gen adds frames, ARGB doubles them.

 

[akugami]

I guess the question on the AMD cards is when it will actually be available after the launch date.

As for the 5070, I have a Microcenter nearby. And I can likely get two at launch, as long as me and the missus are willing to wait early at launch date. I can always pick up the last one at a slightly later date.

But I do think the point stands that someone may opt for a nVidia card, since it came out earlier vs waiting whenever for the new AMD cards.

 

[gdansk]

I guess the question on the AMD cards is when it will actually be available after the launch date.

They already have cards in (a single) customer's hands. Weeks ahead of Nvidia!
People now are saying it's a disaster, so no one wants to buy them. Availability should be good.

 

[igor_kavinski]

but I'm not going to wait an extra month or two and risk getting hit with tariffs just to see if AMD's product is worth it.

Trump seems to have gone soft on implementing the tariffs.

 

[igor_kavinski]

March!!!

I KNOW! What in God's name are they THINKING???

Faster or not, they should have released it in December!

 

[igor_kavinski]

If they launch it now, it won't exist due to 5090/5080 reviews.

Lost in translation. Why would it cease to exist? 5090/5080 aren't its direct competitors. It's hitting a lot lower price point than those two. People unable to afford 5090/5080 are going to want these parts and AMD is disappointing the heck out of them.

 

[igor_kavinski]

I don't get, why people think that this delay is something bad? Imho, AMD absolutely not in a rush, time is fully for their benefit

They are saying things like, our in-house driver is a LOT faster. Then release it DAAMMIT!!!

At this point, as an RX 6800 user (and NIB RX 6800 XT LC owner), I feel infuriated.

 

[gdansk]

Why would it cease to exist? 5090/5080 aren't its direct competitors.

Doesn't matter. RX 7900 XTX wasn't that far behind the RTX 4080. It offered Nvidia -$200. That's 400% the usual AMD discount! But since the RTX 4090 existed no one bought it. (Please ignore the other problems).

 

[igor_kavinski]

Delaying is unusual but doesn't change the performance or position of the cards.

It's still a stupid tactic that is causing them financial harm. Releasing the cards before the CES keynote would've been a great move. People are so desperate that B580 can't stay in stock and if AMD's claims about 9070 non-XT/XT are true, they are doing themselves a disservice by sitting on them.