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

 

[Shmee]

I still have my 1300W EVGA gold supernova. Probably overkill, but it's fine for whatever. Got it at a good price.

 

[eek2121]

Being pedantic - the tariffs will be applied to the cost of the good, not the MSRP. So, if they are declared to be worth (making up numbers for ease) $300 (because retailers buy them for less than MSRP, obviously) the 25% would be $75. So that wouldn't raise the cost to the end user by 25% of the original MSRP necessarily.

That said - most retailers will do everything they can to maintain their margins - which are usually done in terms of percentage vs absolute dollars. In that case, the MSRP is likely to slide up ~25%, but its going to be more or less depending on the market elasticity for the good. Some markets might see zero pass through, especially as they work through existing stocks. Cars, for example, probably won't go up 25% because that would kill the ecosystem.

Video cards though? We've got recent history saying MSRPs don't matter and enthusiasts see a lot of value in new GPUs so... I bet we see at least a 25% increase.

Yay.

(has a full container of aluminum goods on order and just did the math. ouch.)

Yep, you are right, I did somewhat mess that one up, but more importantly: tariffs can apply more than once. Components shipped in/out can count each time. This discussion happened on reddit and it is the reason auto manufacturers here in the U.S. are about to face a crisis.

PSU recommendations have to account for those "chinese firecracker" type cheap PSUs that can handle only about 2/3 of their paper spec without exploding at some point.

Beyond that, a PSU should not be loaded beyond 80-90% (depending on quality) of its load. The stated value is peak and there is also wasted energy unaccounted for. Most PSUs can operate above their rating (including wasted energy) for a bit, but long term?

Oh come on Everest, the guy goes to the trouble of making a Bluesky account and never uses it!

Agreed. The leaker/rumor and tech communities are the only ones that haven’t moved over for me yet. At this point, all the other followers have moved over except a few who went to mastodon. (this excludes companies like Amazon whom I only followed for service reasons)

Everest isn’t a leaker, but he does follow them and posts some good stuff from time to time. I wish they would move over.

Plug a watt meter into the wall and run your system through it. See how many watts you are pulling under load. If you do not have one, buy a cheap one on Amazon for $10-15. I know a few things about pushing power supplies. 750w power supply should be fine. If you are truly pulling 700+ watts. The first thing to go would be a couple of those 140mm fans. Then get bigger SSD's to cut down on the SSD's.

Agreed regarding kill-a-watt. I have owned one for many years and it is actually really handy, even outside the tech space. I had a breaker tripping once and used it to discover an old Microwave developed a short.

Regarding SSDs, I really wouldn’t look at those prior to ruling everything else out. They really do sip power. I have a bunch of PCIE 4.0 SSDs, 2 PCIE 3.0 SSDs, and 2 SATA SSDs (not all active at once due to lack of bandwidth) and the highest powered one uses well under half the power of the hard drives that are now in a drive enclosure.

Most power consumption will be from the CPU and GPU. You can actually cut power consumption from both NVIDIA and AMD significantly by dropping monitor refresh rates or cutting monitors in a multi on setup. Another silent consumer in modern boards is USB. Depending on the board, supported standards, and gadgets plugged in, it can consume over 100W. Another driving factor is AC-> DC conversion waste.

 

[soresu]

Agreed. The leaker/rumor and tech communities are the only ones that haven’t moved over for me yet. At this point, all the other followers have moved over except a few who went to mastodon. (this excludes companies like Amazon whom I only followed for service reasons)

Everest isn’t a leaker, but he does follow them and posts some good stuff from time to time. I wish they would move over.

Hey Kepler if you are about, please stick a needle in some of them if you know how 😆

 

[adroc_thurston]

The leaker/rumor and tech communities are the only ones that haven’t moved over for me yet

That's because they moved to private discords.

 

[Jan Olšan]

- Never forget that the RX 7900XTX was AMD's first 8K GPU

Nvidia already claimed RTX 3090 was one*, had a video with gasping influencers saying This Changes Everything and all.

* Spoiler: 2560x1440 upscaled with 3x factors gives you 8K resolution on the screen (with turd quality).

 

[marees]

In other news some guy bought 9070xt off of scalpers.
Also he got drivers from somewhere tmr benchmarks

Links:

https://twitter.com/x/status/1890543895781515513

https://www.reddit.com/r/gpu/comments/1ipjw6d/radeon_rx_9070_xt

Via https://videocardz.com/newz/gigabyte-radeon-rx-9070-xt-purchased-and-unboxed-ahead-of-launch

 

[SolidQ]

Only unknown what is $, real, CAD, AUD?

 

[poke01]

Only unknown what is $, real, CAD, AUD?

Its mostly likely CAD. Why? If it was Australian the release date would be 7th march

 

[adroc_thurston]

Only unknown what is $, real, CAD, AUD?

Hopefully USD.

 

[RnR_au]

Is that around $US600 ?

 

[Tuna-Fish]

Is that around $US600 ?

Assuming it'd CA$, yes.

 

[marees]

AMD Radeon RX 9070 XT and Radeon RX 9070 will now go on sale on March 6, while the GeForce RTX 5070 12GB will be released on March 5, breaking the past practice of launching on Tuesdays or Thursdays. NVIDIA's similar approach inevitably makes people smell a bit of an attempt to squeeze out AMD. After all, there will be a lot of exposure before the launch, and now that AMD and NVIDIA are so close in time to the market, it is bound to squeeze the media's testing time and exposure pages.

比預期時間要晚了些許，NVIDIA GeForce RTX 5070 12GB 確定在 3 月 5 日開賣 - BenchLife.info

GeForce RTX 5070 稍微推遲了一些些… 原規劃在 2 月底登場的 GeFo […]

benchlife-info.translate.goog

https://videocardz.com/newz/amd-radeon-rx-9070-xt-to-launch-on-march-6-just-day-after-rtx-5070

 

[poke01]

Hopefully USD.

lol can you imagine the internet if it was

 

[adroc_thurston]

lol can you imagine the internet if it was

It would be really funny, and I like the funny.

 

[beginner99]

Microcenter posted prices for 12 different 5070 Ti models. Average is $937. Anyone want to take some new guesses on what retail price of 9070 XT will be? I'm pretty sure ~$600 is out the window.

maybe but here 7900xt still are available for $650 or less and 7800xt for $450. no way I'm paying >$200 more for equivalent performance plus some ray tracing.

 

[jpiniero]

lol can you imagine the internet if it was

I could see retailers going that high even if AMD/AIBs don't.

 

[jpiniero]

maybe but here 7900xt still are available for $650 or less and 7800xt for $450. no way I'm paying >$200 more for equivalent performance plus some ray tracing.

Newegg (sold by them) only has one 7900 XT ($719) and one 7800 XT ($529)

The only 40 series cards they have is the 4060 and 4060 Ti 8 GB. No 50 series cards of course.

 

[Kepler_L2]

Looks like MSRP cards are $750 and $650 for 9070XT/9070

 

[SolidQ]

Looks like MSRP cards are $750 and $650 for 9070XT/9070

I understand 9070vanilla faster than 5070, but 9070XT vs 5070ti isn't almost same? Unless FSR4 give something new tech

 

[Kepler_L2]

I understand 9070vanilla faster than 5070, but 9070XT vs 5070ti isn't almost same? Unless FSR4 give something new tech

It's probably a bit faster on average. Still I think reviews will be very negative because of same MSRP as NVIDIA, despite the fact that RTX 50 MSRP is not real.

 

[exquisitechar]

Still I think reviews will be very negative because of same MSRP as NVIDIA, despite the fact that RTX 50 MSRP is not real.

Yeah, AMD needs to do “fake” MSRPs as well.

 

[marees]

Yeah, AMD needs to do “fake” MSRPs as well.

The Way It Is Meant To Be Sold™️

 

[marees]

https://videocardz.com/newz/sapphire-radeon-rx-9070-xt-nitro-appears-on-amazon-and-someone-already-bought-it

 

[SolidQ]

, despite the fact that RTX 50 MSRP is not real.

5070 is 800? 5070ti MSRP we know 1100$

 

[Dezii90]

$750??

Looks like MSRP cards are $750 and $650 for 9070XT/9070

Yes Nvidia is overpriced & out of supply but... Yonkers