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

 

[Hans de Vries]

Don't forget RT and AI bumps. Plus the shit bw. With GDDR7 this thing could be a monster. Well at least 5080perf.

People who have followed everything on Digital Foundry, use a magnifying glass, and have superhuman fast visual neurons with a trigger rate that can keep up with the FPS, will really appreciate the RTX 5090 above the RX 9070 XT.

Diminishing returns for the rest...

 

[Josh128]

That doesn't make sense to me. If Nvidia raised the price on the 5070 to $650 then it would have worse performance per dollar than the 4070 super.

• The one benchmark Nvidia released shows a 21% lead for the 5070 over the 4070 in RE4 with RT on at 1440. (This is probably a best case scenario).
• TPU's 4070 super review says that the 4070 is 13% slower than the 4070 super at 1440.
• $650 is 8.3% more than $600.

Multiplying those together, a $650 RTX 5070 would have 3% worse performance per dollar.

AMD tried to anticipate what NV was going to do, both pricing and performance wise, in positioning this card. NV almost always has worse performance/$, at least in raster. But 5070 is $549, not $650, so I dont quite follow where you are going with that. 9070 was obviously intended to beat 4070 Super and Ti/Super, not just vanilla 4070. What really poo poo'd their parade is the $749 5070Ti. They did not anticipate that. They were surely thinking it would be $899/$999 and 5080 would be at least $1199-$1299.

 

[GTracing]

NV almost always has worse performance/$, at least in raster. But 5070 is $549, not $650, so I dont quite follow where you are going with that.

I was comparing the perf/dollar of the 5070 vs the 4070 and 4070 super, not vs AMD. You said that AMD expected the 5070 to be more than $600. The 5070 at $650 would be worse than it's predecessor. I don't see how AMD could have been expecting that the 5070 to be worse than the 4070 super in perf/dollar.

 

[Abwx]

AMD tried to anticipate what NV was going to do, both pricing and performance wise, in positioning this card. NV almost always has worse performance/$, at least in raster. But 5070 is $549, not $650, so I dont quite follow where you are going with that. 9070 was obviously intended to beat 4070 Super and Ti/Super, not just vanilla 4070. What really poo poo'd their parade is the $749 5070Ti. They did not anticipate that. They were surely thinking it would be $899/$999 and 5080 would be at least $1199-$1299.

This doesnt hold and is contradictory in all directions, that s the other way around
as the 9070XT was supposed to be a 7800XT successor, so with something like 20% better perf at best.

Since that doesnt seem to be the case you can conclude that it s not AMD who was caught off guard, you can be sure that the 5070 was priced in this perspective, that is to face a 500$ card performing 20% better than the previous 500$ one.

Edit : The only pressure they could have is a price hike pressure if ever mlid leak has some substance.

 

[marees]

This doesnt hold and is contradictory in all directions, that s the other way around
as the 9070XT was supposed to be a 7800XT successor, so with something like 20% better perf at best.

Since that doesnt seem to be the case you can conclude that it s not AMD who was caught off guard, you can be sure that the 5070 was priced in this perspective, that is to face a 500$ card performing 20% better than the previous 500$ one.

Edit : The only pressure they could have is a price hike pressure if ever mlid leak has some substance.

Something weird happening with the prices. All prev gen cards are selling above msrp

Makes no sense to me

 

[Abwx]

Something weird happening with the prices. All prev gen cards are selling above msrp

Makes no sense to me

Dunno what will be the final price but those expecting significantly better perf than a 5070 all while being sold 10% cheaper are good for a rude awaking, and even at same price.

At some point AMD need the money for RD and they have less marketshare to amortize it, so lowering the price too much would be suicidal on the long term, better to sell 20% less volume but with 35% better margin, at the end of the day it s more profitable.

 

[lixlax]

Something weird happening with the prices. All prev gen cards are selling above msrp

Makes no sense to me

7000 series seems to be below MSRP across the board.

 

[marees]

7000 series seems to be below MSRP across the board.

I checked newegg usa. Navi 32 cards are selling above revised msrp

Navi 31 cards are selling at a discount but soon they will go out of stock as AMD has stopped their production a few months ago

I would have expected the navi 32 cards to be on a clearance sale, which is not happening

 

[Heartbreaker]

Something weird happening with the prices. All prev gen cards are selling above msrp

Makes no sense to me

Getting ready for Tariffs. Though I hear a Newegg deal is in the works that if you Pay in Trump Crypto, you get a Tariff exemption.

 

[igor_kavinski]

https://videocardz.com/newz/amd-radeon-rx-9070-xt-bumpy-launch-reportedly-linked-to-price-pressure-from-nvidia

Dang it, AMD! Just pay the difference!

 

[adroc_thurston]

https://videocardz.com/newz/amd-radeon-rx-9070-xt-bumpy-launch-reportedly-linked-to-price-pressure-from-nvidia

Dang it, AMD! Just pay the difference!

This is wrong.

 

[Gideon]

https://videocardz.com/newz/amd-radeon-rx-9070-xt-bumpy-launch-reportedly-linked-to-price-pressure-from-nvidia

Dang it, AMD! Just pay the difference!

If any of this is true then the 4080 Super and 4070 Ti perf rumor almost certainly isn't

Considering how poor the 5xxx series is, there is no chance they could ever have this problem at that perf level.

Why did they choose the 9070 series monicer (instead of 9080) when the planned to price it at ~700€ (where the problems would start)?

Quite a lot of mental gymnastics are needed to justify both at the same time ...

 

[igor_kavinski]

This is wrong.

Who is wrong? If the retailers paid AMD more for the stock than it is worth now, AMD needs to pay them back.

 

[adroc_thurston]

Who is wrong?

whoever posted this FUD.

If the retailers paid AMD more for the stock than it is worth now

they paid less, AMD is jacking up the prices now.

 

[Gideon]

whoever posted this FUD.

they paid less, AMD is jacking up the prices now.

What is the confidence level of this info on the scale of, "MLID is sometimes wrong" to "$999 MSRP for Ryzen 9950X guaranteed"?

 

[adroc_thurston]

What is the confidence level of this info on the scale of, "MLID is sometimes wrong" to "$999 MSRP for Ryzen 9950X guaranteed"?

?

 

[Gideon]

?

You often make firm statements as if you had insider info, with a rather mixed track record.

Is it a total guess, or you're a bit more confident?

 

[exquisitechar]

they paid less, AMD is jacking up the prices now.

If the performance leaks are correct, that would certainly make more sense than Blackwell putting unexpected pressure on them.

 

[Gideon]

If the performance leaks are correct, that would certainly make more sense than Blackwell putting unexpected pressure on them.

Then again, what is so hard about jacking up pricesbthat would take so long for AMD?

It's not like the AIBs would mind, or they would have to change anything. In fact they could even lower them between announcement and release

 

[adroc_thurston]

with a rather mixed track record.

Yeah Turin is definitely 5% better than Genoa. next.

Blackwell putting unexpected pressure on them.

yeah in the opposite direction.

what is so hard about jacking up pricesbthat would take so long for AMD?

You have to gauge how people react to the truly underwhelming parts of the Blackwell lineup (i.e. 5080 and below).

 

[Win2012R2]

they paid less, AMD is jacking up the prices now.

If that's the case, why would it be a problem for retailers or AMD? Sell first batch at higher price, retailer gets more money now, AMD - later

 

[MrTeal]

That PC Games Hardware post sounds a lot more like some guy spitballing on an internet forum than a well connected industry insider reporting on the negotiations between AMD and distributors.

 

[adroc_thurston]

If that's the case, why would it be a problem for retailers or AMD? Sell first batch at higher price, retailer gets more money now, AMD - later

Less of a problem and more they need to gauge public/market reception to 5080 and below Blackwell to price their stuff correctly.
NV has a turd microarch on their hands, but also all the mindshare and AMD doesn't have a halo part to sell. That's where it gets tricky.

 

[Win2012R2]

That's where it gets tricky.

It would not have been tricky had they decided NOT to show anything on CES where they other stuff to show and they knew that Nvidia will show stuff, all they needed to do is wait 1 more month and polish them drivers.

 

[Kepler_L2]

I was comparing the perf/dollar of the 5070 vs the 4070 and 4070 super, not vs AMD. You said that AMD expected the 5070 to be more than $600. The 5070 at $650 would be worse than it's predecessor. I don't see how AMD could have been expecting that the 5070 to be worse than the 4070 super in perf/dollar.

4080 was worse than 3080 in perf/$