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

 

[Hans Gruber]

If the performance is indeed that spectacular, AMD will price them accordingly
My take:

Price
RX 7900XTX: ~$1400
RX 7900XT: ~$1100
RX 7800XT: ~$900
RX 7700XT: ~$600
RX 7600XT: ~$400

Performance
RX 7900XTX: 180% of RX 6950XT
RX 7900XT: 150% of RX 6950XT
RX 7800XT: 130% of RX 6950XT
RX 7700XT: 100% of RX 6950XT
RX 7600XT: 70% of RX 6950XT (In between 6750XT and 6800)

So who is going to buy them when there is no crypto demand. The economy is in a tailspin. The computer market is down 10% worldwide. I do not understand the GPU market today. RDNA3 look really good. But I do not get the economics of AMD and Nvidia in the GPU segment. Are they cooking the books in their quarterly financials moving forward?

 

[Saylick]

Feast your eyes on RDNA 3.

 

[psolord]

^If it does not have melty smoky smelly 12pin adaptor I don't want it!

 

[DisEnchantment]

Feast your eyes on RDNA 3.

View attachment 70106
View attachment 70108

Nice, looks like 375W is tops.
Very interesting design on that fan blade, some submarines also have a similar leading edge at the propeller tip to reduce turbulence and noise.

 

[Saylick]

Nice, looks like 375W is tops.
Very interesting design on that fan blade, some submarines also have a similar leading edge at the propeller tip to reduce turbulence and noise.

Yep, 375W. Fans are slightly bigger than the 6950XT and the heatsink is slightly larger due to more of the cooler shroud being removed from the top of the card, plus the card is longer as well.

Yeah, I've never seen that leading edge before. What catches my eye is the profile. It comes out straight before curving noticeably at the blade tip, like a scimitar. Looks cool though. Also, there's so many references to the number 3 on this card lol.

 

[maddie]

They should have stated >> 50% perf/W it seems.

 

[TESKATLIPOKA]

They should have stated >> 50% perf/W it seems.

That could have been for N33.
With supposedly 2x better performance and 375W TBP, we are looking at 75-80% better efficiency than RX6950XT.

TBP	Efficiency Increase	Perf. at 335W	Perf. at 350W	Perf. at 375W	Perf. at 400W	Perf. at 450W
6950XT	-	100%	-	-	-	-
7950XT	50%	150%	156.7%	167.9%	179%	201.5%
7950XT	55%	155%	161.9%	173.5%	185%	208%
7950XT	60%	160%	167%	179%	191%	215%
7950XT	65%	165%	172%	184.7%	197%	221.6%
7950XT	70%	170%	177.5%	190%	203%	228%
7950XT	75%	175%	183%	196%	209%	235%
7950XT	80%	180%	188%	201.5%	215%	242%
7950XT	85%	185%	193%	207%	221%	248.5%
7950XT	90%	190%	198.5%	212.5%	227%	255%
7950XT	95%	195%	204%	218%	233%	262%
7950XT	100%	200%	209%	224%	239%	269%

edit:
Bondrewd just confirmed TBP is not more than 375W. Link

 

[psolord]

Nice, looks like 375W is tops.
Very interesting design on that fan blade, some submarines also have a similar leading edge at the propeller tip to reduce turbulence and noise.

They chose the submarine type blade, because they will torpedo Nvidia! xD

 

[KompuKare]

^If it does not have melty smoky smelly 12pin adaptor I don't want it!

Well, the green marketting machine is not actually pushing that one (although if it was AMD who were suffering from that issue, I'm sure they would be), but apparently this gen's meme is:
"If it doesn't do fake DLSS 3.0 frames, then I don't want it!"

 

[beginner99]

Nice, looks like 375W is tops.

Yeah but length is alwasy a concern too as it seems i will need to get a new case as 300mm is the absolute max length I can use and only with top facing connectors. Case is old but just throwing away a tons of steel for more space is kind of a waste.

 

[Stuka87]

Yeah but length is alwasy a concern too as it seems i will need to get a new case as 300mm is the absolute max length I can use and only with top facing connectors. Case is old but just throwing away a tons of steel for more space is kind of a waste.

The 6950 is 267mm in length. The card shown here is a bit longer. Hard to tell if its over 300, but it might just fit.

The design itself looks good. I nice iterative improvement.

 

[eek2121]

So who is going to buy them when there is no crypto demand. The economy is in a tailspin. The computer market is down 10% worldwide. I do not understand the GPU market today. RDNA3 look really good. But I do not get the economics of AMD and Nvidia in the GPU segment. Are they cooking the books in their quarterly financials moving forward?

I will consider buying one if it uses less power than my 3090 while being faster in both raster and RT performance. Provided it fits in my case, of course.

Looks like a ceiling of 375W. My 3090 has pulled as much as 450W in the past. Recent vBIOS updates pulled that number back to 400W. Going from 400W->350W would help make up for Zen 4 consuming more power. My 750W PSU would be able to breath easier lol.

 

[TESKATLIPOKA]

Only 3 days left. How will I endure It?
I wonder If AMD will show us the full N31 or just a cutdown version as they did with RDNA2.

 

[tajoh111]

That could have been for N33.
With supposedly 2x better performance and 375W TBP, we are looking at 75-80% better efficiency than RX6950XT.

TBP	Efficiency Increase	Perf. at 335W	Perf. at 350W	Perf. at 375W	Perf. at 400W	Perf. at 450W
6950XT	-	100%	-	-	-	-
7950XT	50%	150%	156.7%	167.9%	179%	201.5%
7950XT	55%	155%	161.9%	173.5%	185%	208%
7950XT	60%	160%	167%	179%	191%	215%
7950XT	65%	165%	172%	184.7%	197%	221.6%
7950XT	70%	170%	177.5%	190%	203%	228%
7950XT	75%	175%	183%	196%	209%	235%
7950XT	80%	180%	188%	201.5%	215%	242%
7950XT	85%	185%	193%	207%	221%	248.5%
7950XT	90%	190%	198.5%	212.5%	227%	255%
7950XT	95%	195%	204%	218%	233%	262%
7950XT	100%	200%	209%	224%	239%	269%

edit:
Bondrewd just confirmed TBP is not more than 375W. Link

This card is not going to be a 375 watt card.

Max 350watts. I am guessing 335watts.

An OEM design is not going to use it's max rated power spec for their cable design as it's average power usage. People need to start reeling in their performance expectations for this card.

AMD is claiming greater than 1.5x performance per watt. Not 2x.

When have companies

 

[Hans Gruber]

I will consider buying one if it uses less power than my 3090 while being faster in both raster and RT performance. Provided it fits in my case, of course.

Looks like a ceiling of 375W. My 3090 has pulled as much as 450W in the past. Recent vBIOS updates pulled that number back to 400W. Going from 400W->350W would help make up for Zen 4 consuming more power. My 750W PSU would be able to breath easier lol.

I regret not buying the RX5700 (RDNA1) for $300 back in 2019.

When the RDNA2 products were released. An AMD executive was taking bets on the supply and availability of the GPU's from AMD. Implying they would have no trouble with supply. Nvidia said there was a serious supply side issue. Nvidia had more GPU's available than AMD throughout the last generation of GPU's.

So I look at pricing of the 40 series and RDNA 3 GPU's. They are saying the 4080 will be $1199. That is totally out of line with the crypto collapse and the world economic collapse. The 1080 was $599 MSRP and the 2080 was $699 MSRP. I am pointing out GPU pricing before the crypto market (total scam by the way) influenced pricing.

 

[jpiniero]

OK so as an example, I took a look at the 4090 Compubase review and looked at the biggest gap between 450 and 350 W for the 4090. That was CoD Vanguard.

If you combine the results together you get this:

139 - 4090 (Unlimited Power, 24 gbps memory)
130 - 4090
121 - 4090 (350 W PL)
113 - 4090 (300 W PL)
69 - 6900 XT Ref

Wanna guess what the 7900 XTX would get?

So I look at pricing of the 40 series and RDNA 3 GPU's. They are saying the 4080 will be $1199. That is totally out of line with the crypto collapse and the world economic collapse. The 1080 was $599 MSRP and the 2080 was $699 MSRP. I am pointing out GPU pricing before the crypto market (total scam by the way) influenced pricing.

Moore's Law wasn't dead then though. Ampere was the last cheap node GPU.

 

[fleshconsumed]

Moore's Law wasn't dead then though. Ampere was the last cheap node GPU.

Eh, even if the new node is more expensive than previous one, it does not cost $500 more per die which is what nvidia is charging for the 4080 compared to 3080.

 

[Saylick]

OK so as an example, I took a look at the 4090 Compubase review and looked at the biggest gap between 450 and 350 W for the 4090. That was CoD Vanguard.

If you combine the results together you get this:

139 - 4090 (Unlimited Power, 24 gbps memory)
130 - 4090
121 - 4090 (350 W PL)
113 - 4090 (300 W PL)
69 - 6900 XT Ref

Wanna guess what the 7900 XTX would get?

>125 would be my guess. I think RDNA 3 can match, if not exceed, Ada's power efficiency at 350W. Mind you, 125 is only 1.8x the 6900XT. 1.8x the 6950XT likely gets you >130.

 

[TESKATLIPOKA]

This card is not going to be a 375 watt card.

Max 350watts. I am guessing 335watts.

An OEM design is not going to use it's max rated power spec for their cable design as it's average power usage. People need to start reeling in their performance expectations for this card.

AMD is claiming greater than 1.5x performance per watt. Not 2x.

When have companies

I must correct my previous calculations.
Graymon55 claims 2x better performance in synthetic benchmarks, but that's likely against 6900XT. Twitter
That's only 87% higher performance than 6950XT, instead of 100% I previously used.

335W then It has 87% higher perf/W than 6950XT.
335W then It has 79% higher perf/W than 6900XT.

350W then It has 83% higher perf/W than 6950XT.
350W then It has 71% higher perf/W than 6900XT.

375W then It has 67% higher perf/W than 6950XT.
375W then It has 60% higher perf/W than 6900XT.
Now It looks more realistic.

 

[Karnak]

I'd be surprised if it exceeds 350W.

Pretty sure AMD wants to avoid another 480 fiasco and pulling that much more over the pcie slot isn't really a thing anymore.

With 2x8pin it'll probably be somewhere around 340-350W.

 

[biostud]

Any chance it is a Navi32 board?

 

[TESKATLIPOKA]

Any chance it is a Navi32 board?

That reference cooler would be too much for N32 with <300W TBP. Don't you think so?

 

[alexruiz]

So who is going to buy them when there is no crypto demand. The economy is in a tailspin. The computer market is down 10% worldwide. I do not understand the GPU market today. RDNA3 look really good. But I do not get the economics of AMD and Nvidia in the GPU segment. Are they cooking the books in their quarterly financials moving forward?

So where are all the RTX 4090s?
OOS everywhere.
I guess those people buying it didn't hear about the recession.
The cards at the top will sell well if the performance delivers

 

[DisEnchantment]

Only 3 days left. How will I endure It?

Look at the bright side, only 3 more days of making performance charts and then you will be free (at least until RDNA4 leaks)

 

[amenx]

So where are all the RTX 4090s?
OOS everywhere.
I guess those people buying it didn't hear about the recession.
The cards at the top will sell well if the performance delivers

In case you werent aware, top tier cards are not produced in same volumes as lower tier cards. There were not that many 4090s produced initially. Therefore easy for a new, just released flagship product to go out of stock.