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

 

[Jan Olšan]

Reading between the lines of that AMD Q&A, RDNA4 really isn't quite ready yet (sounds like HW is so that leaves software).

NVidia is doing a January release, it sounds like AMD will be releasing later in the quarter.

May look like that but who knows ?

 

[gaav87]

Anyone with 9800x3d +7800xt/6800xt/7900xt have Black ops 6 ?
Im already downloading to test on my but only 600mbps internet and its 230gb...

4k extreme no upscaling or frame gen
9070xt perf

 

[techjunkie123]

I Benchmarked the AMD Radeon RX 9070 - IGN

Everything we know so far about the newest graphics cards from AMD.

www.ign.com

Anyone have any data to compare this to?

 

[gaav87]

I Benchmarked the AMD Radeon RX 9070 - IGN

Everything we know so far about the newest graphics cards from AMD.

www.ign.com

Anyone have any data to compare this to?

im at 10% and we will know 9800x3d + 6800xt vs 9950x3d + 9070xt

 

[gaav87]

 

[adroc_thurston]

View attachment 114450


View attachment 114449

TPU isn't using the in-game bench I think

 

[blckgrffn]

From the article:






TPU chart is a little less optimistic than what the author of the little article surmises.

If AMD had a 9070XT that was a clear topper of the 7900XTX and were ready to drop it for $599 or so why wouldn't they just get it done with?

This seems like it would put it in contention with the new 5070 Ti performance wise.

 

[gaav87]

From the article:


View attachment 114451



TPU chart is a little less optimistic than what the author of the little article surmises.

If AMD had a 9070XT that was a clear topper of the 7900XTX and were ready to drop it for $599 or so why wouldn't they just get it done with?

This seems like it would put it in contention with the new 5070 Ti performance wise.

Im downloading we will se vs my oced 6800xt if i dont fall asleep il also test with 7800xt

 

[gdansk]

This seems like it would put it in contention with the new 5070 Ti performance wise

I think Radeon does better than typical in recent Call of Duty games. We have nothing else to go on but take it with the appropriate amount of salt.

 

[gdansk]

Im downloading we will se vs my oced 6800xt if i dont fall asleep il also test with 7800xt

Turn off the OC for a non-lottery run. If you're gonna download a 240gb game for a benchmark make it two.

 

[adroc_thurston]

I think Radeon does better than typical in recent Call of Duty games. We have nothing else to go on but take it with the appropriate amount of salt.

yeah but it's the proxying against N31/32/whatever that matters

 

[gdansk]

yeah but it's the proxying against N31/32/whatever that matters

I agree. He was comparing it to an Nvidia card and I was cautioning against that.

 

[marees]

I Benchmarked the AMD Radeon RX 9070 - IGN

Everything we know so far about the newest graphics cards from AMD.

www.ign.com

Anyone have any data to compare this to?

Based off the TPU charts, this looks like 5% faster than 7900xt in raster

 

[gdansk]

Based off the TPU charts, this looks like 5% faster than 7900xt in raster

TPU is a different test run, not comparable.

 

[marees]

TPU is a different test run, not comparable.

I compared the 4080s vs 7900xt in TPU charts & then scaled to the 4080s mentioned in the ign article

 

[GTracing]

If AMD had a 9070XT that was a clear topper of the 7900XTX and were ready to drop it for $599 or so why wouldn't they just get it done with?

Prevent a fire sale of their old RDNA3 stock?

 

[gdansk]

Prevent a fire sale of their old RDNA3 stock?

I wonder if we can tell anything by which cards AMD and partners got rid of in the last few months. The 7900 GRE is gone but 7900 XT are still in stock.

 

[blckgrffn]

I think Radeon does better than typical in recent Call of Duty games. We have nothing else to go on but take it with the appropriate amount of salt.

I meant relative to CoD, in this case. I get what you are saying.

I don't own CoD (lol, I could find the cds for the first couple maybe ) or I would 7900xtx it.

Prevent a fire sale of their old RDNA3 stock?

How much is even left? It looks pretty drawn down. Why bother. Time to move on, the RDNA3 and RDNA2 stuff has been on sale forever and now's the time to strike as the positive vibes around B580 that were only marginally deserving show.

 

[adroc_thurston]

The 7900 GRE is gone

That one was always a meme SKU.

 

[gaav87]

RTX 4090 5% slower vs 9070xt with alpha drivers

 

[Saylick]

Someone posted this on Xitter.

 

[blckgrffn]

RTX 4090 5% slower vs 9070xt with alpha drivers

View attachment 114452

Lowly 13900K there though

 

[gaav87]

Someone posted this on Xitter.

View attachment 114453

11% slower and prolly oced to look better xD

 

[gaav87]

9070xt 14% faster than 7900xtx lol

 

[blckgrffn]

Well what's the deal then? Let's go.

Look at the delta in Avg FPS on the CPU. 315 vs 255? That's crazy. What's up with that big boy X3D CPU?