Discussion Zen 5 Speculation (EPYC Turin and Strix Point/Granite Ridge - Ryzen 9000)

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MS_AT

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Conversely, in Strix Halo you simply have the same on-die fabric as in Granite Ridge and Turin, but routed to reasonably small vias/ contact pads for hybrid bonding.
I think the protocol is the same but physical layout is bound to be different if they can drop clocks 10x and achieve the same BW. The only way I know of is to route more wires (they can bc new pacakging allows for denser links) but that requires more contacts.
While it's ten times wider than what's going from SERDES to substrate, it's not terribly wide compared to what is already there on-chip. Actually, what's going from the Coherent Master over to the fanout contacts is likely at the same order of magnitude of clock and width as what's going from the Coherent Master to the SERDES.

Further, as @Joe NYC pointed out, this stuff may not show up on die shots at all because it happens in the "lowermost" metal layers.
I undestood from the article that now there is no serdes on this link, hence my expectation this would be somehow reflected in silicon, but yea it might be a droplet in otherwise busy chip.

Well I guess we will find out in couple of months

But if the fanout will turn out to significantly lower idle power draw then I hope they will start using it also for Zen6 desktop.
 

Det0x

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Sep 11, 2014
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A niche product which in its mere existence would consume two 9800X3Ds. And at best the reviews will say to skip it because it is indistinguishable in most tests and even worse in some others at higher cost. It isn't a halo part. It offers no performance over the mixed configuration unless you're running niche work like fluid simulation. It's just an expensive part. AMD has the benchmarks and said "I’m scared to death of it" because it's a very hard product to sell.

The easiest way to avoid reviews is to launch it as part of AM5 Epyc and/or toward the end of Zen 5's life span when no one cares.
i would buy it in a heartbeat if ever released
There is only ~50mhz clockspeed difference between v-cache CCD and regular CCD once overclocked on high binned samples
 

fastandfurious6

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Jun 1, 2024
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Seriously 9950X3D2 would be a big success

There is a big chunk of adult millenials who work in IT and can easily dish out top money for top computer parts

Price increased massively the last years but people still buy.

Nobody would buy any GPU at $4000 10 years ago just for gaming
 

gdansk

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Feb 8, 2011
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Nobody would buy any GPU at $4000 10 years ago just for gaming
Nvidia works very hard to actually deliver more performance at their top end prices.

Wasting another cache chip for hwbot enthusiasts is not gonna be a financial success. Get out of your bubble. The 7800X3D is 6-7x more popular than the 7950X3D because it offers what people want (gaming performance). The 9950X3D2 would be even worse due to price and offering almost nothing measurable out of the box. Why cannibalize two 9800X3Ds when that's what people actually want?
 
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Hail The Brain Slug

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Nvidia works very hard to actually deliver more performance at their top end prices.

Wasting another cache chip for hwbot enthusiasts is not gonna be a financial success. Get out of your bubble. The 7800X3D is 6-7x more popular than the 7950X3D because it offers what people want (gaming performance). The 9950X3D2 would be even worse due to price and offering almost nothing measurable out of the box. Why cannibalize two 9800X3Ds when that's what people actually want?
A smart company sells people products they need. A smarter company sells people products they want. I'm tired of your personal vendetta against the very concept and those of us who want it. Your words are changing no one's mind and are borderline insulting. We know exactly what it is, what it will do, and what it won't do.
 

fastandfurious6

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Jun 1, 2024
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what matters is +5% over 9800X3D, the #1 position on benches has psychological impact, everyone will buy it just like 9800x3d

but if manufacture shortages are true then it doesn't profit AMD much to make it, they'll just print more 9800x3d instead
 

gdansk

Diamond Member
Feb 8, 2011
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A smart company sells people products they need. A smarter company sells people products they want. I'm tired of your personal vendetta against the very concept and those of us who want it. Your words are changing no one's mind and are borderline insulting. We know exactly what it is, what it will do, and what it won't do.
Luckily the minds in charge don't need changing. But maybe they will ship it out when demand tapers off for the actually useful configurations.

It's just as offensive that people are demanding a wasteful, marginally useful configuration while 9800X3D are still in short supply.
 
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gdansk

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what matters is +5% over 9800X3D, the #1 position on benches has psychological impact, everyone will buy it just like 9800x3d
It isn't +any%. Unless you overclock it. In which case an overclocked 9800X3D does the same. It is not a halo configuration unless they go out of their way to 1% bin X3D CCDs too. In which case gamers would again be better served by a cheaper, binned 9800XT3D.
 

fastandfurious6

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Jun 1, 2024
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It isn't +any%. Unless you overclock it. In which case an overclocked 9800X3D does the same. It is not a halo configuration unless they go out of their way to 1% bin X3D CCDs too. In which case gamers would again be better served by a cheaper, binned 9800XT3D.

but 7950x3d is definitely higher than 7800x3d in many cases. which means workload does spill to other cores, so there will be difference
 
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gdansk

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but 7950x3d is definitely higher than 7800x3d in many cases. which means workload does spill to other cores, so there will be difference
No, only in MT where it won't be any better than the 9950X. In a combination of ST/MT/gaming the 9950X3D matches it too, even exceeding in some benches where stock clock & latency regression hurts slightly. This is why it is not a halo part without special binning.

The 9800X3D & 7800X3D get people on AM5. No point in making a niche $1000 SKU until you got all the hoppers. Lowest priority.
 

MS_AT

Senior member
Jul 15, 2024
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A smart company sells people products they need. A smarter company sells people products they want. I'm tired of your personal vendetta against the very concept and those of us who want it. Your words are changing no one's mind and are borderline insulting. We know exactly what it is, what it will do, and what it won't do.
And how big are "we"? I mean if you would be able to gather 10k people who agree with you, then maybe AMD would be able to do a short run series where you would pay 1k $ for the part. Or maybe 100k people is needed. But this is beside the point, thing is if they release 1k$ SKU that doesn't have a noticeable lead over 9950x in Cinebench and 9800x3d in games, then techtubers will start another round of "waste of sand" media campaign that will hurt the brand image in eyes of general public, even if "you" know better where the strengths of the part are, I am afraid the public will not agree with you.

It's somewhat similar to AVX512 story, where majority was scolding AMD for wasting silicon on useless vector instruction set, even though they delivered the best avx512 implementation to date.
 

fastandfurious6

Senior member
Jun 1, 2024
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for zen 6 they really need to make a super superchip dedicated 100% to real performance, max tdp max vcache everything maxed out, without wasting silicon for NPUs and AVX512 and whatnot

like Halo but 100% CPU

hold the indisputable crown even higher than the popular *800X3D models
 

LightningZ71

Platinum Member
Mar 10, 2017
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The sad thing is that there ARE a few situations where the dual 3d setup would make a notable difference, it's just that games are NOT one of them. That's why I suggested they deliver it as an Epyc 4xxx chip. If it flops in gaming, it's not a big deal as that's not what Epyc is for. The same cases that favor the 3d Epyc server parts also would work here.
 

maddie

Diamond Member
Jul 18, 2010
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Seriously 9950X3D2 would be a big success

There is a big chunk of adult millenials who work in IT and can easily dish out top money for top computer parts

Price increased massively the last years but people still buy.

Nobody would buy any GPU at $4000 10 years ago just for gaming
That's a good point. The older players, a lot now, have gotten wealthier.
 

Kolifloro

Member
Mar 15, 2023
25
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for zen 6 they really need to make a super superchip dedicated 100% to real performance, max tdp max vcache everything maxed out, without wasting silicon for NPUs and AVX512 and whatnot

like Halo but 100% CPU

hold the indisputable crown even higher than the popular *800X3D models


I would have thought ... that Zen 6 on N2 would be an opportunity to truly compete against ARM solutions (Apple's included) ...

And I might be wrong ... but when I say compete, I mean in the performance-efficiency (low power usage) trophy ...

Regards.
 

StefanR5R

Elite Member
Dec 10, 2016
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Maybe some of the apologists of heterogeneous CPUs such as 7950X3D don't understand software very well.

9950X3D is heterogeneous too, but hopefully not as bad as 7950X3D. (That is, with a clock frequency differential small enough such that cache insensitive workloads behave practically identical on both CCXs — hopefully.)
 
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