Discussion RDNA4 + CDNA3 Architectures Thread

DisEnchantment · Mar 23, 2022

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

adroc_thurston · Jan 18, 2025

gdansk said:
If it has Radeon's patented Big Cache technology, how much will GDDR7 even help

Incrementally.
But 40-50% more bandwidth is 40-50% more bandwidth.

Win2012R2 · Jan 18, 2025

gdansk said:
If it has Radeon's patented Big Cache technology, how much will GDDR7 even help?

3 GB chips + still faster stuff for smaller bus

Gideon · Jan 18, 2025

adroc_thurston said:
Incrementally.
But 40-50% more bandwidth is 40-50% more bandwidth.

Well, larger bus and GDDR7 didn't benefit 5090 almost at all

adroc_thurston · Jan 18, 2025

https://videocardz.com/newz/asus-radeon-rx-9070-xt-tuf-graphics-cards-gets-first-unboxing-video-ahead-of-launch

what the hell is this launch

Gideon said:
Well, larger bus and GDDR7 didn't benefit 5090 almost at all

well that's an Nvidia problem.

Tup3x · Jan 18, 2025

adroc_thurston said:
https://videocardz.com/newz/asus-radeon-rx-9070-xt-tuf-graphics-cards-gets-first-unboxing-video-ahead-of-launch
what the hell is this launch

Either they have some kind of clever plan or they have absolutely no clue what they are doing.

Heartbreaker · Jan 18, 2025

Tup3x said:
Either they have some kind of clever plan or they have absolutely no clue what they are doing.

The only people freaking out about this are extreme tech nerds that check the internet many times a day, for an info fix.

Normal people don't remotely care that a GPU presentation was moved a couple of weeks. Given the fact that cards are arriving at retailers, it doesn't even appear this will impact deliveries, it's just a slip in the presentation, which normal people weren't going to watch anyway.

GTracing · Jan 18, 2025

Heartbreaker said:
The only people freaking out about this are extreme tech nerds that check the internet many times a day, for an info fix.

I feel attacked.

Win2012R2 · Jan 18, 2025

Heartbreaker said:
extreme tech nerds that check the internet many times a day, for an info fix.

Is this the wrong forum for it?

poke01 · Jan 18, 2025

99.99% people don’t even know an AMD GPU is launching soon and that’s a fact.

I think🤪

Heartbreaker · Jan 18, 2025

Win2012R2 said:
Is this the wrong forum for it?

We are probably all tech nerds here, but the over-reactions to a postponed presentation are getting more than a little silly, and it's important to recognize when something that may seem important to this fringe, is basically irrelevant to normal people.

eek2121 · Jan 18, 2025

adroc_thurston said:
https://videocardz.com/newz/asus-radeon-rx-9070-xt-tuf-graphics-cards-gets-first-unboxing-video-ahead-of-launch
what the hell is this launch

well that's an Nvidia problem.

IIRC Jan 22 is supposed to be the embargo date. Really wondering why partners are leaking so much. 🤣

adroc_thurston · Jan 18, 2025

eek2121 said:
Really wondering why partners are leaking so much. 🤣

It's not even a partner, just a retailer showing stuff.
Like GPUs are basically on shelves already.

Bigos · Jan 18, 2025

Well, they want attention. And breaking NDA is probably less costly to them than that.

That still indicates that product is on shelves. Good news is that the availability might be better on launch day due to this. But why is this launch so butt-backwards?

Prices are most probably still in flux. AMD could have already been selling stuff but decided to wait for NV most probably.

I know GPU launches are weird, but I think AMD wants to take the Launch Weirdness World Record.

GodisanAtheist · Jan 19, 2025

Heartbreaker said:
We are probably all tech nerds here, but the over-reactions to a postponed presentation are getting more than a little silly, and it's important to recognize when something that may seem important to this fringe, is basically irrelevant to normal people.

-I mean who else buys AMD cards knowingly? The only people an AMD DIY card launch is relevant to is tech nerds.

Joe Dumb**** doesn't care and he's gonna go buy a "5070:4090 Performance: $550" card anyway.

Anyone who actually gives a flying **** about AMD cards is here, or on other tech forums. And this is a weird AF announce/reveal/launch/release fo-sho.

Heartbreaker · Jan 19, 2025

GodisanAtheist said:
-I mean who else buys AMD cards knowingly? The only people an AMD DIY card launch is relevant to is tech nerds.

We are not the market, we are barely a rounding error on the market.

I'm sure most AMD GPU buyers that have better things to do with their days, and the same applies to other buyers of all tech products.

Imagine somewhere there are Dishwasher forums, with fans arguing about which dishwasher is best, and there is postponed announcement of a dishwasher, that some are freaking out about.

We wouldn't even know that announcement exists because dishwashers have no daily interest to us. We would be like 99.9%+ of the public that doesn't care about dishwasher product announcements.

The same applies to normal people and GPU announcements.

Normal people might do some research when they actually need to buy a product, they don't hang out in forums breathlessly awaiting the next leak/rumor/official crumb of information for months on end.

The normals are going to outnumber the forum dwellers >1000:1.

gaav87 · Jan 19, 2025

I feel wallets will be empty and hearths will be broken

del42sa · Jan 19, 2025

adroc_thurston said:
https://videocardz.com/newz/asus-radeon-rx-9070-xt-tuf-graphics-cards-gets-first-unboxing-video-ahead-of-launch
what the hell is this launch

Can someone phone AMD and tell them they have RDNA4 graphics cards to announce?

marees · Jan 19, 2025

del42sa said:
Can someone phone AMD and tell them they have RDNA4 graphics cards to announce?

AMD reportedly in a fix, due to 'low price' of Nvidia cards

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

Thunder 57 · Jan 19, 2025

marees said:
AMD reportedly in a fix, due to 'low price' of Nvidia cards

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

Not sure I buy that. It doesn't take weeks to set a new price. I tihnk it's more likely they are waiting to see reviews. Considering Intel's recent success, at least in the eyes of the public, that seems stupid IMHO.

SolidQ · Jan 19, 2025

marees said:
AMD reportedly in a fix, due to 'low price' of Nvidia cards

To this?

AMD Radeon™ Image Sharpening (RIS) Technology Support: RIS enhances clarity and visual detail in games by increasing sharpness, while maintaining optimal performance through built-in AI, delivering a more enjoyable visual experience.

AI RIS now? Friends love use RIS since 5700XT

Tuna-Fish · Jan 19, 2025

Thunder 57 said:
Not sure I buy that. It doesn't take weeks to set a new price.

The rumors are specifically that retailers already paid more for the cards than what AMD now wants to sell them at, and want guarantees that the rebates to cover the difference come faster than how AMD has usually handled it.

Thunder 57 · Jan 19, 2025

Tuna-Fish said:
The rumors are specifically that retailers already paid more for the cards than what AMD now wants to sell them at, and want guarantees that the rebates to cover the difference come faster than how AMD has usually handled it.

OK, that makes more sense.

jpiniero · Jan 19, 2025

marees said:
AMD reportedly in a fix, due to 'low price' of Nvidia cards

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

Gotta say BS. If the XT is comparable to the 4080/5080 in raster, the assumed original price of $599 should not be that big of a headache. Esp if it's trading blows with the 5070 Ti in RT too.

Heartbreaker · Jan 19, 2025

jpiniero said:
Gotta say BS. If the XT is comparable to the 4080/5080 in raster, the assumed original price of $599 should not be that big of a headache. Esp if it's trading blows with the 5070 Ti in RT too.

Yeah, it's still $150 less than 5070 Ti. Though I think the 9070 vs 5070 pricing might be too close for comfort.

GTracing · Jan 19, 2025

marees said:
AMD reportedly in a fix, due to 'low price' of Nvidia cards

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

This is just a report on a PCGH forum post. It has the same credibility as when wccftech makes articles about posts on this forum.

The rumor doesn't pass basic scrutiny. Blackwell is a middling price/performance increase. So unless they expected Blackwell to have zero price/performance increase, I don't see how AMD could have been caught off guard.

Discussion RDNA4 + CDNA3 Architectures Thread

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