Question Speculation: RDNA3 + CDNA2 Architectures Thread

[uzzi38]

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 is much bigger than from RDNA1 to RDNA2. We should expect many big improvements in GFX11. 🤔" / Twitter

 

[Saylick]

So, any takers on if there will be a "together we advance_PCs part 2" centered around RDNA3 announcement/launch (and possibly Zen4+V-Cache as well, makes most sense TBH)?

Probably called "together we advance_gaming" or something like that, and I think it will be a separate event in October.

 

[soresu]

The other ones aren't really extra chiplets. I'm assuming they're just calling the v-cache die that gets stacked on the MCD an extra chiplet.

That actually makes so much more sense than the way others have presented this multi chiplet talk for RDNA3 until now.

 

[Kaluan]

That actually makes so much more sense than the way others have presented this multi chiplet talk for RDNA3 until now.

They'll probably flex hard with that, come RDNA3 announcement/launch event. I think it's rumored "tensor-core"-like capabilities will also have a spotlight.

I also expect another SAM type showcase, maybe DirectStorage/PCIe 5.0 related? Who knows, but they'll probably want to capitalize even more on 5.0 M.2/platform capabilities somehow, that Intel doesn't have.

 

[TESKATLIPOKA]

At this point I would expect some new info about RDNA3, yet It's too quiet to my liking.
We don't even know when they will have an RDNA3 event. Nvidia will show us something on September 20.

 

[GodisanAtheist]

At this point I would expect some new info about RDNA3, yet It's too quiet to my liking.
We don't even know when they will have an RDNA3 event. Nvidia will show us something on September 20.

-Theu've shown Lies of Pi supposedly running on RDNA3 hardware, and Lisa sounded way less hesitant than she did when introducing Vega way back when, so I assume things are going well and AMD doesn't want to tip it's hand before NV does.

NV is between a rock and a hard place and sort of have to do something. AMD can wait and counter NV marketing as it comes out.

 

[amenx]

At this point I would expect some new info about RDNA3, yet It's too quiet to my liking.
We don't even know when they will have an RDNA3 event. Nvidia will show us something on September 20.

AMD could have just gotten better at guarding their info. The stakes are pretty high and a critical leak at the wrong time can spoil a product launch. A few years ago, they got burned bad from a leak about the RX 5600 XT just days before its launch to which Nividia responded by lowering the price of the RTX 2060 to compete. AMD had to delay the launch of their card while they raised its GPU clocks to perform better against it. Obviously they dont want any sort of thing occurring with RDNA3.

 

[TESKATLIPOKA]

Not sure how accurate his info is.

The question is what will It compete against.

 

[GodisanAtheist]

<blockquote class="twitter-tweet"><p lang="en" dir="ltr">The design of n31 is great, but its spec is a little small. As long as the price is reasonable, the competitiveness of 31 will be very strong.</p>&mdash; Greymon55 (@greymon55) <a href="

https://twitter.com/x/status/1568134001231278081

">September 9, 2022</a></blockquote> <script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>

- The Beauty of a chiplet design allows AMD to upgrade different portion of the overall package at different rates. I STRONGLY suspect that after 5nm volume increases/prices drop further/4nm becomes more accessible AMD will have a lot of room to drop in a nice fat "N34" GCD die while leaving the rest of the package the same and get a ton of extra performance with very few changes to overall card production.

 

[jpiniero]

Not sure how accurate his info is.
The question is what will It compete against.

I do have some doubts about AMD's ability to get people to buy a $2K video card. So maybe it's not the end of the world if the full N31 is "only" ~4090 performance.

 

[Saylick]

I do have some doubts about AMD's ability to get people to buy a $2K video card. So maybe it's not the end of the world if the full N31 is "only" ~4090 performance.

If the 4090 is 50% more expensive (i.e. $999 for N31 vs $1499 for 4090) while offering only 10-15% better performance, I think that should be enough competitiveness for AMD.

 

[Stuka87]

If the 4090 is 50% more expensive (i.e. $999 for N31 vs $1499 for 4090) while offering only 10-15% better performance, I think that should be enough competitiveness for AMD.

10-15% is being rather generous. A 3090 wasn't 15% faster than a 3080, and a 3090Ti wasn't 10-15% faster than a 3090. Yet nVidia charged way more.

 

[jpiniero]

If the 4090 is 50% more expensive (i.e. $999 for N31 vs $1499 for 4090) while offering only 10-15% better performance, I think that should be enough competitiveness for AMD.

What I meant is that it would be competitive with the 4090 but not the 4090 Ti.

 

[Saylick]

10-15% is being rather generous. A 3090 wasn't 15% faster than a 3080, and a 3090Ti wasn't 10-15% faster than a 3090. Yet nVidia charged way more.

Oh yeah, you're right. Although I think the bigger selling point for upgrading to the 3090 over the 3080 was the RAM size. The 3090 Ti was literally just for those who have e-peen insecurity and Nvidia could blame the GPU shortage to justify the stupidly high price.

 

[Kepler_L2]

Not sure how accurate his info is.
View attachment 67364
The question is what will It compete against.

Surely AMD's 540mm² hyper area-optimized GPU can't compete against NVIDIA's cutdown 590mm² GPU

 

[Aapje]

The 3090 Ti was literally just for those who have e-peen insecurity and Nvidia could blame the GPU shortage to justify the stupidly high price.

It actually fixes a problem with the 3090. The VRAM is all on the front, unlike the 3090, where the VRAM on the back of the card is not properly cooled.

Although this is more a reason not to get a 3090, than to get a 3090 Ti.

 

[TESKATLIPOKA]

Surely AMD's 540mm² hyper area-optimized GPU can't compete against NVIDIA's cutdown 590mm² GPU

You meant hyper (super mega giga uber extreme) area-optimized GPU, right? Sorry, couldn't help It.
No one said It won't compete against the NVIDIA's cutdown 590mm² GPU, the question is against which cutdown version and he also didn't specify If he meant raster or RT.
If you have some insider info then feel free to share It with us.

 

[Tugrul_8192bit]

RDNA can join two compute units to compute a single block of workitems in OpenCL. Will they increase this to add more hardware available per GPU thread?

 

[darkswordsman17]

They'll probably flex hard with that, come RDNA3 announcement/launch event. I think it's rumored "tensor-core"-like capabilities will also have a spotlight.

I also expect another SAM type showcase, maybe DirectStorage/PCIe 5.0 related? Who knows, but they'll probably want to capitalize even more on 5.0 M.2/platform capabilities somehow, that Intel doesn't have.

With PCIe 5, putting an m.2 slot on card could be interesting. It'd reduce the latency (maybe overhead as well), while it should be able to offer proper bandwidth to the CPU/system for normal storage. Might even be a way to bypass the platform options (meaning, you can get PCIe 5 m.2 capability even if you go with a lower board) since for consumers I think most would be wanting that for games, and that'd be doubly true for ones also on a bit of a budget where gaming performance is the priority.

Just thought of something, putting an m.2 slot on card would help with eGPU.

 

[soresu]

With PCIe 5, putting an m.2 slot on card could be interesting

That is basically the old Radeon SSG cards with changeable memory.

 

[eek2121]

I do have some doubts about AMD's ability to get people to buy a $2K video card. So maybe it's not the end of the world if the full N31 is "only" ~4090 performance.

You guys are once again overshooting prices. Note that the 3090 was under $1,500, with it being as cheap as $1,200 at launch. The 3090ti was briefly $2,000, but prices were quickly lowered to the 3090 MSRP.

AMD GPUs will be more expensive than last gen, but cheaper than the NVIDIA Ti series launch. MUCH cheaper.

I am keeping a close eye on N31. If it has strong RT performance (at least as strong as my 3090, preferably much stronger) I will buy it simply due to open-source support. If not, I may consider it depending on size, perf/watt, etc.

As it is I may not be able to get a top GPU because I'm going SFF for next gen.

 

[darkswordsman17]

That is basically the old Radeon SSG cards with changeable memory.

That's exactly my thinking. I don't believe they'd put NAND on the card directly again, and they don't need to with PCIe 5. Plus now they have a gaming reason. And if they knew they were going to do something like that, it might be why they're letting motherboard makers have a lot of options for PCIe configs, since gamers would have an option.

I don't actually believe they'd do that, most likely they will tout PCIe 4/5 and DirectStorage.

 

[jpiniero]

You guys are once again overshooting prices. Note that the 3090 was under $1,500, with it being as cheap as $1,200 at launch.

No way was a 3090 anywhere near $1200 until basically recently. Most AIBs would have originally priced their cards above the $1499 MSRP. Maybe if you got it off a back of a truck?

I am interested to see if nVidia does a Fake MSRP like they did with the 3080 and 2080 Ti.

 

[Kaluan]

I am interested to see if nVidia does a Fake MSRP like they did with the 3080 and 2080 Ti.

You mean the "Founder's Edition" bait 'n' switch crap? Probably.

IDK I just have my fingers crossed for a ~$600 high bin N32 or low bin N31, of Sapphire make.

What are the odds AMD announces it's RDNA3 announcement (lol) event on the 20th?

 

[GodisanAtheist]

You mean the "Founder's Edition" bait 'n' switch crap? Probably.

IDK I just have my fingers crossed for a ~$600 high bin N32 or low bin N31, of Sapphire make.

What are the odds AMD announces it's RDNA3 announcement (lol) event on the 20th?

-Give em just enough time to update their slide decks in response to what NV presents and we'll hear them hit back.

 

[jpiniero]

What are the odds AMD announces it's RDNA3 announcement (lol) event on the 20th?

N31 is rumored to be coming out sometime in November so pretty unlikely. Although you might see something from AMD before the 4090's release depending on how deep into October the 4090's release is.