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

 

[carrotmania]

Rather, any new low-end GPU has to compete with used old stuff, and a tariff on all the new stuff makes that hard.

Nah, that hasn't been the case in years. New stuff can be any price, and we just gotta suck it. Also, NV are rumoured to not have a massive jump in perf this gen and will definitely be susceptible to tariffs too, and AMDs previous stuff wasn't amaze, and no one really wants that Intel sludge, so if 8xxx does what the rumours suggest they definitely don't need to compete, just price it "good enough".

 

[CastleBravo]

Cos Nvidia are gonna eat the tariff cost? That's nice of them!

Regardless of Blackwell pricing, RDNA4 will be poorly received if value is perceived to be less than prior gen GPUs.

 

[jpiniero]

Nah, that hasn't been the case in years. New stuff can be any price, and we just gotta suck it.

It's definitely been a problem for AMD since reviewers have used in the past the old products at Fire Sale prices versus the new product prices.

This time though... I checked again and Radeon supply (at Newegg at least) is very low.

 

[MrTeal]

Used pricing will also adjust to the new market realities. If the new administration goes nuts and imposes some kind of 100% tariff so that a new 5070 ends up costing $1000, you can be assured that people won't be selling a (reasonably) similarly performant 4070 Ti for $300 used.

 

[jpiniero]

Used pricing will also adjust to the new market realities. If the new administration goes nuts and imposes some kind of 100% tariff so that a new 5070 ends up costing $1000, you can be assured that people won't be selling a (reasonably) similarly performant 4070 Ti for $300 used.

There's only so high you can go with prices wrt tarriffs given that the 5090 (and probably 5080) can't be assembled in China so they shouldn't be subject to the tariffs.

 

[Mopetar]

I doubt TSMC products will have tariffs applied. The USA doesn't consider Taiwan to be a part of China and TSMC is already building facilities in the United States.

AIB cards may see them depending on where they're manufactured, but I'm not overly concerned there either. As others have pointed out, not everything is assembled in China, and not everyone here lives in the USA anyway. Even if you do just buy your GPU in Mexico. If there's enough demand there will be supply to meet it, just as there is with pharmacies and similar businesses that are prevalent in small border towns.

 

[SolidQ]

Interesting Video

 

[igor_kavinski]

Battle of the cousins!

 

[maddie]

I don't see tariffs, if imposed, lasting long. No local substitutes = societal pain. Years needed to fix the issues. Huge tariffs as a 1st choice is a juvenile answer to fixing the issue of offshored industry
.

 

[Joe NYC]

I don't see tariffs, if imposed, lasting long. No local substitutes = societal pain. Years needed to fix the issues. Huge tariffs as a 1st choice is a juvenile answer to fixing the issue of offshored industry
.

Tariff is equivalent to Value Added Tax, but only on imports. Every country in Europe has it. It raises a tremendous amount of tax revenue.

People in Europe and elsewhere have lived under this type of system for ages. Only the US lets in imports without any federal taxation.

The US will join the rest of the world in doing this. Just ask everyone in Europe how much they are paying, when, for example, AMD sets official price of an in-demand product, say 9800x3d, ask them if they are paying $479 in Mind Factory (which is not a scalper). Euro price equivalent of that would be EUR 455.

Euro seems to be a moving target, as in moving down. Just checked, and the official price now is EUR 542 (instead of EUR 455). So Europeans are already paying an EUR 100 "tariff", but they just call it VAT.

Edit: link

https://www.tomshardware.com/pc-components/cpus/amd-increases-ryzen-7-9800x3d-official-price-to-542-euros-in-europe-due-to-exchange-rate-fluctuations-cpu-is-still-selling-well-over-that-price-regardless

 

[jpiniero]

Tariff is equivalent to Value Added Tax, but only on imports. Every country in Europe has it. It raises a tremendous amount of tax revenue.

That's not what a tariff is. This tariff would be specifically on products imported by certain countries, ie: China.

 

[blckgrffn]

That's not what a tariff is. This tariff would be specifically on products imported by certain countries, ie: China.

Correct, not equivalent to a VAT.

Just makes my customs bills bigger, as many products already have import duties. HTS codes are assigned to all items imported to the US, then you look up the item in the database, specify the country and then you see the rates. Discounts and penalties exist in this system too. Tariffs add another line item on my import invoices. Thankfully, my personal business is not a big Chinese importer so on that front I am not as worried.

What does give me pause is the number of industries supercharging their imports now to try to "beat" the tariffs - if you've received it before the tariffs kicked in, you've beaten it and some companies are keen to onshore as much as possible right now.

The ports of course are never super efficient and then tarting them up a bunch of ships arriving all in Q1 is a sure way to get some random thousands of dollars of "congestion fees" that are non-negotiable and fully invoice time surprises added to the mix. Nothing like a base fee of ~$3k for a container turning into $10k by the time the driver is impatiently giving you 2 hours to offload it before hitting you with delay penalties to really make your day.

This will mess with the cost of goods next year even if no tariffs happen now.

 

[Joe NYC]

That's not what a tariff is. This tariff would be specifically on products imported by certain countries, ie: China.

Some of these things are easier to argue / explain using Venn diagrams, rather than by media brainwashing.

Imagine a consumption tax set, and then various subsets (and how they are labeled). Just think in terms of subset (of consumption taxes) and label of the subset.

The end result may be that the US consumers pay the same prices as European customers. Price will be the same, just the label of the subset of consumption tax will be different.

The price of 9800x3d may end up being the same $579 in the US and Europe. Arguing how to label the $100 tax is a waste of time.

 

[jpiniero]

Some of these things are easier to argue / explain using Venn diagrams, rather than by media brainwashing.

Imagine a consumption tax set, and then various subsets (and how they are labeled). Just think in terms of subset (of consumption taxes) and label of the subset.

The end result may be that the US consumers pay the same prices as European customers. Price will be the same, just the label of the subset of consumption tax will be different.

The price of 9800x3d may end up being the same $579 in the US and Europe. Arguing how to label the $100 tax is a waste of time.

It's not a consumption tax. It's a trade war. The goal isn't to get people to pay the tariff, the goal is to get companies to move production out of China.

 

[blckgrffn]

It's not a consumption tax. It's a trade war. The goal isn't to get people to pay the tariff, the goal is to get companies to move production out of China.

And the 9800x3d won’t cost us more because it’s from Taiwan, in this specific example.

Or Malaysia 😂

 

[Tuna-Fish]

And the 9800x3d won’t cost us more because it’s from Taiwan, in this specific example.

Trump is not threatening tariffs for China alone. His plan is 60% (or is it higher now) tariff on everything out of China, and 20% on everything out of anywhere else.

 

[blckgrffn]

Trump is not threatening tariffs for China alone. His plan is 60% (or is it higher now) tariff on everything out of China, and 20% on everything out of anywhere else.

He’s said a lot of things. I’ll believe the numbers when they happen, last time around APAC was largely spared due to it being strategically imperative/important to us.

Right now the threat is enough to foul things up.

 

[SolidQ]

Interesting what is GPU here?

https://twitter.com/x/status/1864817873165677032

 

[poke01]

After looking at the new Indy game, I believe AMD should made a higher VRAM card for RDNA4. I would not buy this generation if your on RDNA3 20GB and 24GB VRAM cards. Best to wait till UDNA in 2026.

Do not be tempted by that sweet sweet RT

 

[igor_kavinski]

It will be VERY hard

I think it's also a strategy by AMD to sell out the existing 7900 20/24 GB cards. Their decisions must've been forced by less than expected sales. They must really be getting tired of AIBs buying GPUs from them at low prices YEARS after fabbing them

 

[marees]

In light of competition from battlemage at low end & blackwell at high end, I believe Radeon's line-up will look like the below:

$200 — 7600 (6nm)
$250 — 7600xt / 28 CU 8gb navi 44xl
$300 — 32 CU 8gb navi 44
$350 — 7700xt / 16gb 32 CU navi 44xt
$400 — 48 CU 12gb navi 48xl
$450 — 7800xt
$500 — 7900gre / 56 CU 16gb navi 48xt
$600 — 64 CU 16gb navi 48xtx
$650 — 7900xt
$750 — 7900xtx / 32gb 64 CU navi 48xtx

 

[Tuna-Fish]

I find it unlikely that any of the 5nm Navi 3x cards will remain in the lineup. Navi 33 is probably really cheap to make now, so that might be rebadged as a 500 series or something.

 

[adroc_thurston]

In light of competition from battlemage at low end & blackwell at high end, I believe Radeon's line-up will look like the below:

$200 — 7600 (6nm)
$250 — 7600xt / 28 CU 8gb navi 44xl
$300 — 32 CU 8gb navi 44
$350 — 7700xt / 16gb 32 CU navi 44xt
$400 — 48 CU 12gb navi 48xl
$450 — 7800xt
$500 — 7900gre / 56 CU 16gb navi 48xt
$600 — 64 CU 16gb navi 48xtx
$650 — 7900xt
$750 — 7900xtx / 32gb 64 CU navi 48xtx

they're not making any RDNA3 part besides N33 after N4M launches lmao.

 

[SolidQ]

Interesting why NV making 5070ti faster release, isn't that 8800XT faster than RTX 5070?

 

[jpiniero]

Interesting why NV making 5070ti faster release, isn't that 8800XT faster than RTX 5070?

No but that might be the case with the 5070.