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

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itsmydamnation

Platinum Member
Feb 6, 2011
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What about the rumors that Zen 6 CCD is larger than 8C? How will they stick to 16C max on desktop with larger CCD's? Only give desktop one 16C CCD?
remember zen6 stops being server IOD/ CCD for DIY consumer market.
So i would expect monolithic for CPU + IOD + display controllers with maybe rest of GPU being a separate chiplet,
 

Fjodor2001

Diamond Member
Feb 6, 2010
3,926
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Bigger and meaner core for poverty markets.
Zen5c means smaller and area compact cores at better perf/watt, with more cores per chip for non-peasant/gamer markets. Will also be possible with regular Zen5/6 cores.
They intend to use it for fatter cores.
As already proven, it does not make any sense to use 170W TDP with only 16C or below. Very little perf gained for the last few 100 Mhz while consuming an insane amount of additional TDP. 170W is intended for >16C while within AM5 lifetime.
 

adroc_thurston

Diamond Member
Jul 2, 2023
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Zen5c means smaller and area compact cores at better perf/watt
It's not really better perf/W, it's just cheaper.
As already proven, it does not make any sense to use 170W TDP with only 16C or below.
Why are you saying things while having no clue about Granite Ridge or any other future AMD products?
Very little perf gained for the last few 100 Mhz while consuming an insane amount of additional TDP.
Why are you saying this without profiling a living GNR-B0 silicon?
 

maddie

Diamond Member
Jul 18, 2010
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4,771
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Zen5c means smaller and area compact cores at better perf/watt, with more cores per chip for non-peasant/gamer markets. Will also be possible with regular Zen5/6 cores.

As already proven, it does not make any sense to use 170W TDP with only 16C or below. Very little perf gained for the last few 100 Mhz while consuming an insane amount of additional TDP. 170W is intended for >16C while within AM5 lifetime.
If you have a wider core, don't you also have more transistors switching at any one time, so more power used? Why are you locked on frequency?
 
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Fjodor2001

Diamond Member
Feb 6, 2010
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It's not really better perf/W, it's just cheaper.
Then Zen5c is poorly designed. AMD should look at what e.g. Apple / Qualcomm is doing with their efficiency cores.
Why are you saying things while having no clue about Granite Ridge or any other future AMD products?
It's obvious. Huge amount of TDP consumption on max 16C for the last few 100 MHz:es for nearly no perf gain is insane. AM5 is screaming for more cores to make better use of the 170W TDP.
Why are you saying this without profiling a living GNR-B0 silicon?
If you've got official profiling statistics from GNR-B0 silicon, please share.
 

Fjodor2001

Diamond Member
Feb 6, 2010
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If you have a wider core, don't you also have more transistors switching at any one time, so more power used? Why are you locked on frequency?
How much more perf will the last few 100 Mhz:es gain on Zen5, while consuming how much more TDP? Do you have numbers?

Also, heard of Zen5c?
 

adroc_thurston

Diamond Member
Jul 2, 2023
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Then Zen5c is poorly designed
No, it's designed for a very specific reason: cost.
Apple / Qualcomm is doing with their efficiency cores.
Qualcomm has no LITTLE.
It's obvious. Huge amount of TDP consumption on max 16C for the last few 100 MHz:es for nearly no perf gain is insane. AM5 is screaming for more cores to make better use of the 170W TDP.
It needs fatter cores and that is exactly what you're getting.
If you've got official profiling statistics from GNR-B0 silicon, please share.
I do, but you have to guess stuff on your own.

You're not getting what you want.
Some things are out of your reach and this is one of them.
 

Fjodor2001

Diamond Member
Feb 6, 2010
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No, it's designed for a very specific reason: cost.
What I meant is that it's then poorly designed for perf/watt. Compared to e.g. efficiency cores by Apple / ARM.
Qualcomm has no LITTLE.
ARM has. Apple has.
It needs fatter cores and that is exactly what you're getting.
The 170W is needed and intended for more cores on later Zen generations.
I do, but you have to guess stuff on your own.
Yeah, right. Funny guy.
 
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Fjodor2001

Diamond Member
Feb 6, 2010
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You are not getting more cores.
Please, just give up and accept what matters in client: single-thread performance.
There is no official info pointing in either direction.

Going by the rumors, at least with Intel we'll be getting 8P+2x16E=40C. I'm expecting AMD to follow, unless they want to be left behind in the dust. Their AM5 17OW TDP also points in the direction of preparing for CPUs with more than 16C.
 
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Timmah!

Golden Member
Jul 24, 2010
1,463
729
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It still is, TR starts there.

You are not getting more cores.
Please, just give up and accept what matters in client: single-thread performance.
TR may start there, but its not exclusive to it, when it once was. Thats the point.
I accept we are not getting it with Zen 5 or Zen 6, but you may it look sound like we are going to be stuck at 16C for like next 100 CPU generations
 

gdansk

Platinum Member
Feb 8, 2011
2,492
3,387
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230W does allow 32 cores but why are you insistant they'd do that when they're making the cores bigger and on a process that doesn't have much higher logic density? Zen 5 isn't the time.

8+16 is possible but the MSRP would be much higher than you want.
 

adroc_thurston

Diamond Member
Jul 2, 2023
3,322
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I'm expecting AMD to follow, unless they want to be left behind in the dust.
They have a gigantic 1t advantage and care not even one bit about atom spam.
Thats the point.
The point is you're not getting more cores, they're not free lunch.
The only free lunch you're getting is 1t CAGR.
230W does allow 32 cores but why are you insistanr they'd do that when they're making the cores bigger and on a process that doesn't have much higher logic density?
because he's too poor for threadripper and wants cinememe pumping in DT mainstream
 
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Khato

Golden Member
Jul 15, 2001
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Oh they do know them.
They also know Turin numbers.

Perhaps in some fictional realm of the internet, sure. I wouldn't be the least bit surprised if Intel has some silicon numbers on Turin in the form of feedback from customers. Even plausible that they've managed to get time with an actual system. But numbers from actual GNR B0 silicon as of today? Nope.
 

Timmah!

Golden Member
Jul 24, 2010
1,463
729
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MT isn't relevant in client to this degree.
Plus, I mean, Atoms. not very useful outside of cinememe.

Oh they do know them.
They also know Turin numbers.
It will be, if intel´s marketing do their thing As if people knew they dont really need 40C or that most of them are "atoms". As if they knew what Atom is.
Not sure why the distaste for Cinebench. Sure, its kinda overused, but its not like its completely artificial - its derived of Cinema 4D after all, is it not? Actual app people use for work. And performance it measures fairly translates to performance in other similar apps like Vray or Corona.
 

adroc_thurston

Diamond Member
Jul 2, 2023
3,322
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But numbers from actual GNR B0 silicon as of today?
B0 step has been with us for a while, it just PRQd early January.
It will be, if intel´s marketing do their thing
They can't do anything because 1t delta.
Sure, its kinda overused, but its not like its completely artificial - its derived of Cinema 4D after all, is it not? Actual app people use for work.
Actual Cinema4D is GPU-accelerated.
 
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