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

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Fjodor2001

Diamond Member
Feb 6, 2010
3,989
440
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Zen 6 is probably almost finished.

Honestly I am not sure why AMD released ZEN 5 for PCs at all. They may have released some more interesting CPUs based on ZEN 4 in the meantime, as 7950X with two cache dies, etc.
Sure, but there are other subsequent Zen releases, such as Zen7 etc.

The question is if any of them will be based on Zen5?
 

Kocicak

Golden Member
Jan 17, 2019
1,067
1,124
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Logic fail. You make the claim, you supply the evidence. Veracity is irrelevant.
I studied research methodology. I wrote clearly that you should support your claim as best you can.

In reality and in non-research situations you sometimes simply cannot do it, for example journalists cannot reveal their sources sometimes.
 
Jul 27, 2020
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Honestly I am not sure why AMD released ZEN 5 for PCs at all.
Arrow Lake. Releasing early they thought they could grab some marketshare away from Intel because Core CPUs sell, even if they are turds like Core Ultra (Meteor Lake).

Unfortunately, they just gave more hope to people waiting for Arrow Lake that it will surpass Zen 5 in quite a few benchmarks. 9950X needed to beat 14900KS in EVERY benchmark, even if by 2%. It doesn't do that.
 

sgs_x86

Junior Member
Dec 20, 2020
10
22
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I studied research methodology. I wrote clearly that you should support your claim as best you can.

In reality and in non-research situations you sometimes simply cannot do it, for example journalists cannot reveal their sources sometimes.
Your research methodology training is irrelevant here. Because MLID does not have valid sources 90% of the time.
He just makes things up whenever he needs it.
Did you miss the events from few months ago when MLID was outed for his desperation, lack of vetting and outright lies ?
Couple of guys created an email address and shared fabricated slides with MLID claiming they contain Zen arch info. He took that info with ZERO vetting of the source. And the worst part is that he split the information into 3 pieces in his video claiming he got it from 3 INDEPENDENT sources. So clearly he is shady. He is all about drama, clickbait and sensationalism.
 

Hans Gruber

Platinum Member
Dec 23, 2006
2,298
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Arrow Lake. Releasing early they thought they could grab some marketshare away from Intel because Core CPUs sell, even if they are turds like Core Ultra (Meteor Lake).

Unfortunately, they just gave more hope to people waiting for Arrow Lake that it will surpass Zen 5 in quite a few benchmarks. 9950X needed to beat 14900KS in EVERY benchmark, even if by 2%. It doesn't do that.
It's as people here do not realize Intel is going from 10nm to 5nm with Arrow Lake. People are going to be shocked with the power efficiency of Arrow Lake that is primarily based on the 20A 5nm platform. With Zen 5 being a total flop for now. My prediction is there has to be a Zen 5+ next year with N3P silicon to counter Arrow Lake. Next year or early 2026 Intel has 18A that will last quite a few years.

The main question is will Arrow Lake be more power efficient than Zen 5. Intel will no longer have to juice their processors to achieve performance goals. N3P would be a very big efficiency boost for AMD.
 

Thunder 57

Platinum Member
Aug 19, 2007
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Where Zen5+ will have architectural changes too? When would you expect that to be released? 6, 12, 24 months from now?

First we have to get X3D, and then if it’s much later after that it’ll be close to Zen6 in time.

There is zero word on Zen5+ ATM and I don't expect that to chage. I was hoping we were done with runors and fake leaks.
 

Thunder 57

Platinum Member
Aug 19, 2007
2,960
4,500
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It's as people here do not realize Intel is going from 10nm to 5nm with Arrow Lake. People are going to be shocked with the power efficiency of Arrow Lake that is primarily based on the 20A 5nm platform. With Zen 5 being a total flop for now. My prediction is there has to be a Zen 5+ next year with N3P silicon to counter Arrow Lake. Next year or early 2026 Intel has 18A that will last quite a few years.

The main question is will Arrow Lake be more power efficient than Zen 5. Intel will no longer have to juice their processors to achieve performance goals. N3P would be a very big efficiency boost for AMD.

I wish you would start using the modern node names. RPL is on "Intel 7". Rumor is last I checked ARL will use 3N for higer end and Intel 20A for lower end chips. There is no "intel 5" and 20A is not "5nm".

Zne 5+ has been a popular idea since Zen 5 came out pretty crappy. The early ARL numbers aren't looking great though at least for ST. In MT Skymont seems to do well. I expect the 9800X3D will be the most popular when it comes out assuming AMD doesn't delay those too.
 

poke01

Platinum Member
Mar 8, 2022
2,008
2,546
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To AMD employees who are also reading this thread.
I have seen various tests of the 9950x. After 2 years of work on ZEN 5, hundreds of changes and architecture improvements, it is obvious that in a hurry the engineers made a mistake somewhere and SOMETHING is seriously blocking the performance of this CPU. There is a bottleneck somewhere/something that effectively negates the potential of all these improvements in ZEN 5.

AMD Please find this ASAP and release an updated version as e.g. 9950X Extreme

THIS is necessary to ensure that all the effort and steam that went into creating ZEN 5 does not go to waste
You want fixed Zen5 then get Strix Halo early next year. 😛
 

sl0519

Junior Member
Aug 10, 2024
20
51
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I wish you would start using the modern node names. RPL is on "Intel 7". Rumor is last I checked ARL will use 3N for higer end and Intel 20A for lower end chips. There is no "intel 5" and 20A is not "5nm".

Zne 5+ has been a popular idea since Zen 5 came out pretty crappy. The early ARL numbers aren't looking great though at least for ST. In MT Skymont seems to do well. I expect the 9800X3D will be the most popular when it comes out assuming AMD doesn't delay those too.

Correct me if I'm wrong but I remember I read it from somewhere that
intel 3 = intel 7 nm +
intel 20A = intel 5 nm
intel 18A = intel 5 nm +
 

SteinFG

Senior member
Dec 29, 2021
624
740
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Correct me if I'm wrong but I remember I read it from somewhere that
intel 3 = intel 7 nm +
intel 20A = intel 5 nm
intel 18A = intel 5 nm +
There's no Intel "7nm", and that's even more true for Intel "5nm". It's just some guesswork based on old roadmap naming
 

PJVol

Senior member
May 25, 2020
698
621
136
I thought about this and I think both the above points could be related to the L3 which is the actual SDF/SCF master and which is responsible for CCX to CCX traffic. L3 has a very important role in maintaining coherency across all cores.
Given that their HPC, DT, and mobile CCX seem to already have slight design differences, what's stopping them from using DT-specific macros for GR or, eg BEOL customization? And besides, I'm not sure if there's a functionality in Zen CPU that can't be tweaked.

With regards to the "aggressive core parking" theory, it raises more questions, like what happens to the CPU "C-state" management? Or, does Zen 5 exhibit the same behavior in OC mode?

Either way, be it the filter/hash or the parking, I can't imagine it can't be fixed or adjusted in MP5 firmware or PID settings. Looking forward for HotChips, it may clarify a lot.
 
Last edited:

Abwx

Lifer
Apr 2, 2011
11,517
4,303
136
Arrow Lake. Releasing early they thought they could grab some marketshare away from Intel because Core CPUs sell, even if they are turds like Core Ultra (Meteor Lake).

Unfortunately, they just gave more hope to people waiting for Arrow Lake that it will surpass Zen 5 in quite a few benchmarks. 9950X needed to beat 14900KS in EVERY benchmark, even if by 2%. It doesn't do that.

At Computerbase the 9950X is ahead of the 14900K both in ST by 6% and MT by 10%, and at 275W for the 14900K, as for ARL it will be eventually slightly ahead only in Cinebench and that s by using 250W.

Same as the 241W 12900K wich was trounced by the 142W 5950X in almost any MT bench excepted in Cinebench, but this time ARL wont have any ST advantage, if early numbers are accurate it will be crushed in WebXPRT4, an Intel friendly browsing bench, and Speedometer and sligthly below in GB, wich is telling about its SC perf.
 
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