Question Speculation: RDNA3 + CDNA2 Architectures Thread

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uzzi38

Platinum Member
Oct 16, 2019
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linkgoron

Platinum Member
Mar 9, 2005
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So disappointed with RNDA3 and AMD. After RDNA1 and RDNA2, they just bit more than they could chew with RDNA3. In theory using the chiplet strategy, it should have been simpler to release N32 and N33, but it's clearly that's not the case. Huge Vega vibes. Such a radical redesign + new node might have been too much, and sadly they didn't have a backup plan (RDNA2 doesn't count). N32 and N33 are so late it's a joke.
 

jpiniero

Lifer
Oct 1, 2010
15,223
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So disappointed with RNDA3 and AMD. After RDNA1 and RDNA2, they just bit more than they could chew with RDNA3. In theory using the chiplet strategy, it should have been simpler to release N32 and N33, but it's clearly that's not the case. Huge Vega vibes. Such a radical redesign + new node might have been too much, and sadly they didn't have a backup plan (RDNA2 doesn't count). N32 and N33 are so late it's a joke.

They could have released N32 (and N33 on desktop) by now... but there would have been no point since it would have been redundant with there being apparently plenty of RDNA2 still unsold.
 

Ajay

Lifer
Jan 8, 2001
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They could have released N32 (and N33 on desktop) by now... but there would have been no point since it would have been redundant with there being apparently plenty of RDNA2 still unsold.
Which is a pretty big screw up in and of itself. Surprised we aren't hearing of more heads rolling.
 

linkgoron

Platinum Member
Mar 9, 2005
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They could have released N32 (and N33 on desktop) by now... but there would have been no point since it would have been redundant with there being apparently plenty of RDNA2 still unsold.
That's a joke. AMD are losing market share and mindshare while Nvidia has already released AD102, AD103, AD104 and will supposedly soon release AD106. It's obvious that RDNA3 is just bad, and they had to go back to the drawing board.
 

biostud

Lifer
Feb 27, 2003
18,701
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Is there really so many RDNA2 parts in stock, or are they also freshly made? If AMD and their board partners really had a lot of stock, they probably had a get together and agreed to sell out the stock before AMD could launch N32, otherwise AMD might find it hard to sell GPUs in large quantities in the future.
 

Mopetar

Diamond Member
Jan 31, 2011
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If they had to delay a replacement for 6+ months they might continue production on the older parts. Even if there were a lot of inventory, they'd probably still sell through it over a long stretch like that.

By this point the bin quality will have gone up so AMD could always sell at the same price but give the AIB partners higher quality chips that would go into their higher margin parts.

Navi22 at ~$300 is too much of a good deal right now for stock levels not to deplete before Navi32 drops.
 

jpiniero

Lifer
Oct 1, 2010
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The other issue is whether AMD would be able to get any laptop OEM N32 deals... and whether this theoretical 6 month later refresh would be a big enough improvement to change things if the answer was no.
 

PJVol

Senior member
May 25, 2020
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Is there really so many RDNA2 parts in stock, or are they also freshly made?
I bought mine in july with the chip dated 2214, whatever that means, so probably still many. But the question is if N32 was delayed long before N31 launch event.
Tbh, MLIDs rumoured "artifacts" raises another question, if they admit Rdna4 has the same issue and it was fixed, what the driver team was doing some 2-3 months then, if it obviously is the hardware bug or even the design flaw?
 
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PJVol

Senior member
May 25, 2020
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If it's the same scheme as used with CPUs it should be year and week, so 14th week in 2022 which is early April 2022.
You know, I've been curious, and now it's an even bigger mystery, where the hell are all these miner's cards? ) Shouldn't there be a huge number of them floating around?
 

fleshconsumed

Diamond Member
Feb 21, 2002
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You know, I've been curious, and now it's an even bigger mystery, where the hell are all these miner's cards? ) Shouldn't there be a huge number of them floating around?
They're there, ebay is full of them, I see tons of listings of what are clearly mining cards. However, since apparently tons of people are still buying 40 series despite 50% gen on gen price hike, sellers have no reason to drastically lower RDNA2/30xx prices. Sad to see personally, but I don't set the pricing.
 

PJVol

Senior member
May 25, 2020
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Trying to find software mitigations to the hardware bug. It's very common.
I assume you didn't watched his video, where the "source" stated the product was launched with the bug already mitigated, or to be precise the stall was introduced in the pipeline for this purpose.
 

maddie

Diamond Member
Jul 18, 2010
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I assume you didn't watched his video, where the "source" stated the product was launched with the bug already mitigated, or to be precise the stall was introduced in the pipeline for this purpose.
Didn't they also say that the performance reduction was greater than expected? If so, then they would be exploring better alternatives
 
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Aapje

Golden Member
Mar 21, 2022
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They're there, ebay is full of them, I see tons of listings of what are clearly mining cards. However, since apparently tons of people are still buying 40 series despite 50% gen on gen price hike, sellers have no reason to drastically lower RDNA2/30xx prices. Sad to see personally, but I don't set the pricing.
Your reasoning makes little sense. If people buy 4000 cards instead, sellers would have to lower prices to compete. Lack of demand means lower prices, not higher.

It's much more logical that demand for 2nd hand cards is quite high due to the high prices of the new gen, so sellers don't have to lower prices much to sell.
 

Aapje

Golden Member
Mar 21, 2022
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I assume you didn't watched his video, where the "source" stated the product was launched with the bug already mitigated, or to be precise the stall was introduced in the pipeline for this purpose.
That clearly causes performance degradation, so the bug is still there and they just picked the lesser of two evils to make sure that the card at least functions correctly, if slower.
 

fleshconsumed

Diamond Member
Feb 21, 2002
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Your reasoning makes little sense. If people buy 4000 cards instead, sellers would have to lower prices to compete. Lack of demand means lower prices, not higher.

It's much more logical that demand for 2nd hand cards is quite high due to the high prices of the new gen, so sellers don't have to lower prices much to sell.
We're saying same thing. Pricing is determined in part by the next gen pricing, and it's absurdly high so unless the demand craters which it hasn't used card sellers have no reason to lower prices.
 

jpiniero

Lifer
Oct 1, 2010
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AMD releasing RDNA3 Radeon Pros. The W7900 is basically a 7900 XTX with 48 GB of memory; the W7800 is a new spec that has 70 CUs and 256 bit so 32 GB of memory. Possibly comparable to a theoretical 7900 non-XT.
 
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Timorous

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Oct 27, 2008
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AMD releasing RDNA3 Radeon Pros. The W7900 is basically a 7900 XTX with 48 GB of memory; the W7800 is a new spec that has 70 CUs and 256 bit so 32 GB of memory. Possibly comparable to a theoretical 7900 non-XT.

70CUs would indicate 5 Shader engines enabled with 14CUs per shader engine instead of the full 6 SE + 16CUs per SE of the top model. That is quite a cut down part.

So I presume the spec would be as follows if this cut was also used as a GPU (possibly 7800XT IMO)

64MB L3
16GB GDDR6
70 CUs
70 RTcores
160 ROPs
280 TMUs.
640 GB/s bandwidth if 20 Gbps ram is used

Give it a 2.5-2.6ghz boost clock and it should perform a bit ahead of the 6950XT. Possible it gets released as a 7800XT but I expect AMD would much rather make N32 work as the 7800XT by increasing clocks to 3Ghz as they would be similar in performance and the N32 part would cost less to make.
 

leoneazzurro

Golden Member
Jul 26, 2016
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The W7900 has the full spec N31 with MORE RAM AND higher nominal clock AND lower TBP AND higher specs on DP 2.1.
Highly binned part or new stepping?

EDIT: clock refers to boost, so it's the same as the 7900XTX. So likely to be highly binned parts with pro features enabled.
 
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Mopetar

Diamond Member
Jan 31, 2011
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Probably 8 GB. Otherwise there have been a lot of leaks regarding Navi 33 specs so the only thing that we really don't know is where the clock speed will end up. I suppose the price is also unknown.
 

Heartbreaker

Diamond Member
Apr 3, 2006
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Probably 8 GB. Otherwise there have been a lot of leaks regarding Navi 33 specs so the only thing that we really don't know is where the clock speed will end up. I suppose the price is also unknown.

Yeah, 128 bit bus, the same as NVidia 4060/4060 Ti, really limits them both to 8GB of RAM without making things more complicated.
 
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