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

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Joe NYC

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Jun 26, 2021
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I am honestly surprised we haven’t seen another XT chip from AMD. I imagine at least some chips are capable of hitting 6ghz.

If Zen 5 was far in the future, Zen 4 on N4 or N4P might be an option.

But since Zen 5 seems quite close, it was likely not worth the effort and resources.
 

Joe NYC

Platinum Member
Jun 26, 2021
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They don't care.
Refresh cycles are X3D now.

Halo effect matters, and AMD should have cared when Zen 3 lost the performance crown to Alder Lake.

Going forward, when it looks like Zen 5 will be in comfortable lead in single thread, it will be sufficient to have just regular Zen 5 and then refresh with X3D.
 

Joe NYC

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Jun 26, 2021
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Yeah this would be the holy grail, unfortunately this means putting the cache die under the core and that IMO really doesn't make sense unless they're redoing the packaging anyway - so most likely we'll have to wait for Zen 6 for this limitation to be removed.

Unless AMD surprises us with a super-secret project at X3D release as they did with the initial 3D cache CPUs ...

I must say, I'm a bit disappointed that AMD decided to keep the Zen 2 packaging for the Zen 5 generation. Event on the high-end consumer CPUs, cmon, It's been 4 generations already!

If someone would have asked me in 2019, when will AMD move to more advanced consumer packaging on premium parts, I would have quessed with Zen 4 (with a new socket) or with Zen 5 at the absolute latest ...

Well, Strix Halo will have new packaging.

It will have much faster and power efficient links to IO die.

But with the new packaging, it would also be possible to connect 2 Zen 5 dies in Strix Halo to each other. Zen chips had 2 GMI links. If it translates to the new Zen 5 RDL packaging, and the 2 ports where the GMI is attached can be exposed to this new packaging, it might be a possibility.

With some super brainy algorithm, it may be possible to access the L3 of the other CCD...

But this does not really help desktop. Until Zen 6.
 
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moinmoin

Diamond Member
Jun 1, 2017
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Halo effect matters, and AMD should have cared when Zen 3 lost the performance crown to Alder Lake.

Going forward, when it looks like Zen 5 will be in comfortable lead in single thread, it will be sufficient to have just regular Zen 5 and then refresh with X3D.
I'm confused, are you saying an XT refresh would have a bigger halo effect than an X3D refresh? The Zen 3 refresh is still selling pretty well I heard.
 

CakeMonster

Golden Member
Nov 22, 2012
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Gonna save myself the headache of thread priority again and get the vanilla Z5 16c part. Bonus is more value over time as its (probably) released before the X3D part. Downside is probably BIOS immaturity.
 

Joe NYC

Platinum Member
Jun 26, 2021
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Gonna save myself the headache of thread priority again and get the vanilla Z5 16c part. Bonus is more value over time as its (probably) released before the X3D part. Downside is probably BIOS immaturity.

Same IO die means most of the BIOS features don't change. So, I think Zen 5 will have much smoother release than Zen 4.
 

adroc_thurston

Diamond Member
Jul 2, 2023
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You love to kill dreams, don't you?
Absolutely.
Halo effect matters, and AMD should have cared when Zen 3 lost the performance crown to Alder Lake.
No Zen3 was still selling like hotcakes past ADL.
Not like a 100MHz bump changes anything.
But with the new packaging, it would also be possible to connect 2 Zen 5 dies in Strix Halo to each other.
No.
If it translates to the new Zen 5 RDL packaging, and the 2 ports where the GMI is attached can be exposed to this new packaging, it might be a possibility.
oh man.
where do i even begin
Yes, TSM marketed it as 2nd gen N7 iirc.
Downside is probably BIOS immaturity.
It's a mature platform, nothing changes but CCDs themselves.
AMD could have done both, N6 refresh of Zen 3 and also X3D
wasting time on absolutely irrelevant products is not how AMD operates.
 

Joe NYC

Platinum Member
Jun 26, 2021
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No Zen3 was still selling like hotcakes past ADL.
Not like a 100MHz bump changes anything.

200-300 MHz would have been enough for Zen 3 to somewhat tie Alder Lake, it would prevented Pat from making his "rear-view mirror" comment. And then Zen 3 X3D would have been again a Halo product, instead of a sort of a tie with Alder Lake.

The loss Halo effect cost AMD dearly in sales. One of the contributors to AMD loss of 66% of revenue in client.

wasting time on absolutely irrelevant products is not how AMD operates.

Loss of 66% of client market is a clear indication that the way AMD operates results in sub-optimal outcome.

Ongoing effect of this is multibillion loss of revenue. AMD lost far more in client revenue than gained in server revenue since AMD lost Halo effect to Alder Lake.
 
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Jul 27, 2020
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No chance that a project that would end up as an actual AMD product would be handed over to interns.
If they had started on it when Zen3+ was originally decided, the interns would have completed it by now and we would be seeing a CPU launch on AM4 right about now. Nothing exciting but at least, it would be something new for the AM4 crowd. I'm not saying that they would have done it all by themselves but I think they could have managed 80% of the work, with help from their seniors. But of course, that's just me assuming that AMD interns are far above in capability than the interns everywhere else.
 

Hitman928

Diamond Member
Apr 15, 2012
5,611
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If they had started on it when Zen3+ was originally decided, the interns would have completed it by now and we would be seeing a CPU launch on AM4 right about now. Nothing exciting but at least, it would be something new for the AM4 crowd. I'm not saying that they would have done it all by themselves but I think they could have managed 80% of the work, with help from their seniors. But of course, that's just me assuming that AMD interns are far above in capability than the interns everywhere else.
No, interns are never given that much responsibility. They barely know how to install a toilet correctly (metaphorically speaking) let alone build the entire house, even if given the blueprints and all the right materials to start. The senior engineers would be spending more time fixing their mistakes than had they just done it themselves.
 

adroc_thurston

Diamond Member
Jul 2, 2023
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200-300 MHz would have been enough for Zen 3 to somewhat tie Alder Lake, it would prevented Pat from making his "rear-view mirror" comment
ughhh no.
And then Zen 3 X3D would have been again a Halo product, instead of a sort of a tie with Alder Lake.
It didn't tie ADL-S, it vaporized it, lmao.
The loss Halo effect cost AMD dearly in sales. One of the contributors to AMD loss of 66% of revenue in client.
what.
The client decline is all laptops since channel was stuffed with garbage.
Loss of 66% of client market is a clear indication that the way AMD operates results in sub-optimal outcome.

Ongoing effect of this is multibillion loss of revenue. AMD lost far more in client revenue than gained in server revenue since AMD lost Halo effect to Alder Lake.
that's all laptops, -S has no relevance to AMD's revenues or bottom line.
 
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