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

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Tup3x

Golden Member
Dec 31, 2016
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Typical clulessness used as argument.to badmouth AMD.

If 26 games out of 30 work flawlessly it means that the 4 remaining ones have half broken code, i wont abound on that matter but FI google "Resident Evil crash", and do the same with F1 24, it s just so much easy to blame AMD for the incompetence of some games developpers.
Ah yes, the typical everyone else is to blame attitude. If it worked with pervious gen, there really shouldn't be any reason why those are suddenly broken. If things suddenly start working after driver update, whose the incompetent part (rhetorical question)?

They need to improve their own software/firmware and involvement with devs across the board. Things sure could be better.
 
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Markfw

Moderator Emeritus, Elite Member
May 16, 2002
26,050
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Ah yes, the typical everyone else is to blame attitude. If it worked with pervious gen, there really shouldn't be any reason why those are suddenly broken. If things suddenly start working after driver update, whose the incompetent part (rhetorical question)?

They need to improve their own software/firmware and involvement with devs across the board. Things sure could be better.
while every company can do better, AMD seems to doa better job than Intel as of late. 4 games on one version of the CPU gives this bad review ? I wish I could say more.
 
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gdansk

Platinum Member
Feb 8, 2011
2,832
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while every company can do better, AMD seems to doa better job than Intel as of late. 4 games on one version of the CPU gives this bad review ? I wish I could say more.
It's not the CPU problem anyway but GPU drivers. Plus I'm confident AMD has more games that work with their drivers than other SoC makers like Qualcomm, Intel or Apple. At least this is my experience with my Intel 1250U, Apple M1 Pro and AMD 7840U.

I don't have an HX 370 to test but AFAIK it was ISA compatible with RDNA3 so it shouldn't need many driver changes. OTOH it wouldn't be surprising for Radeon team to have messed this up anyway.
 

Kepler_L2

Senior member
Sep 6, 2020
513
2,081
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Thing I just noticed re-reading the Zen 5 Info thread:

Zen 5Zen 4Zen 3Zen 2
Transistor Count8.315B6.5B4.15B3.9B
6.5 / 4.15 = 56% increase
8.315 / 6.5 = 27.9% increase

How did Zen 4, which is supposedly more or less a tweak on Zen 3, have this much more transistor count? Obviously the node leap was massive, but...that's still huge. 56% more.
Zen 5 is a massive rework with a completely new decode, and they still only added 28% in comparison.
AVX-512 support + huge frequency increase is not free.
 

DavidC1

Senior member
Dec 29, 2023
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Last edited:

DrMrLordX

Lifer
Apr 27, 2000
21,991
11,542
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Can't find definitive comparisons yet but those numbers don't sound exceptional.
It's a useful perf/watt comparison. Here we have Bergamo, which was the Zen4 most-optimized for perf/area and perf/watt, and standard Zen5 (Turin) is dropping a bomb on it in perf/watt. Bergamo may only be running @ 1.8 GHz, but it's still burning 360W to achieve that feat.
 

DavidC1

Senior member
Dec 29, 2023
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Bergamo may only be running @ 1.8 GHz, but it's still burning 360W to achieve that feat.
That's TDP not actual power consumption in that workload. Those results should also be verifiable, so let's get to it?

Also I think top is Compression and bottom is Decompression. They are nearly exactly the same for both chips. You'll see in other comparisons there is quite a bit of a gap. So why isn't it showing it here?
 
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jdubs03

Senior member
Oct 1, 2013
666
289
136
Unfortunately it seems to be a single switch in Windows that is leading to most of the gains seen in Windows 24H2... so I doubt we will see such gains again

Interesting how 24H2 shows some regressions from the latest patch to 23H2, granted it is a “preview” build.

I'm pretty sure HWUB is going to do a video based on 24H2 (maybe the patch to 23H2), to compare any uplift between vendors. And it seems even tentatively that there’s uplift between both, but with AMD getting some more out of it.

 

MS_AT

Member
Jul 15, 2024
198
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clear linux is made by intel optimized for intel right?

can you imagine AMD linux?? 🚀🚀 🍷🍷🍷🍷
Yes, and it's not a pretty picture seeing current AMD software efforts Since AMD basically reached feature parity with Intel, they stand to benefit from most of what Intel is doing. I would not expect that tuning OS for specific microarchitecture could get you much further anyway. But you can always try to check out CachyOS with Zen4/Zen5 optimized repositories. https://www.phoronix.com/review/linux-os-amd-ryzen9-9950x
 
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stayfrosty

Junior Member
Apr 4, 2024
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Unfortunately it seems to be a single switch in Windows that is leading to most of the gains seen in Windows 24H2... so I doubt we will see such gains again

HWUB got their 10-11% gains having turned off said switch in both 23H2 and 24H2.


Might be that VBS off benefits more from the update, might be game selection, might be something completetly different... Still a lot of open questions.
 

jdubs03

Senior member
Oct 1, 2013
666
289
136
Interesting commentary from HWUB. I can see why the one dude commented the way he did. It’s not a good idea to be disabling VBS. So their results are all showing higher than what would be attained during normal usage. But as I’ve been stressing over this episode, the only way to truly know the performance differentials between SKUs and versions is to make sure each permutation is done with VBS off/on, other settings. Otherwise important information is being omitted.
 
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LightningZ71

Golden Member
Mar 10, 2017
1,777
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has anyone seen any testing of how much performance improvement Hawk Point gets from the windiws branch predictor patch? Strix Point supposedly shipped with it, so it's already got the improvements and barely beats Hawk Point without the patch. How bad is the relative performance now?
 

Josh128

Senior member
Oct 14, 2022
282
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lol so now the update went from affecting one game out of 40 for Intel to all of a sudden it gives Intel more gains than AMD in all games? All this FUD is getting rather old. Bias clouds everything.
 

RnR_au

Platinum Member
Jun 6, 2021
2,004
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lol so now the update went from affecting one game out of 40 for Intel to all of a sudden it gives Intel more gains than AMD in all games? All this FUD is getting rather old. Bias clouds everything.
I don't think its bias, just reviewers getting to grips with new items on their checklists.
 
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DrMrLordX

Lifer
Apr 27, 2000
21,991
11,542
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That's TDP not actual power consumption in that workload. Those results should also be verifiable, so let's get to it?

Sure, know anyone who owns a Bergamo? Seriously though, I'm not even sure if the EPYC platform has a distinction between TDP and PPT (if that's what you're implying). The source doesn't supply that data in any case.

Also I think top is Compression and bottom is Decompression. They are nearly exactly the same for both chips. You'll see in other comparisons there is quite a bit of a gap. So why isn't it showing it here?

Hard to say. Could have something to do with memory bandwidth and how desktop platforms never has as much available. Here's a 7950X3D that doesn't show the same patterns:


And this reviewer also showed compression being slower than decompression, even on a 9950X:

 

Mahboi

Senior member
Apr 4, 2024
969
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HWUB got their 10-11% gains having turned off said switch in both 23H2 and 24H2.


Might be that VBS off benefits more from the update, might be game selection, might be something completetly different... Still a lot of open questions.
I almost want to get cheeky and ask them to start adding a "Level of Expected Degradation" on 14900/14700Ks".
 

Nothingness

Diamond Member
Jul 3, 2013
3,024
1,953
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Hard to say. Could have something to do with memory bandwidth and how desktop platforms never has as much available. Here's a 7950X3D that doesn't show the same patterns:


And this reviewer also showed compression being slower than decompression, even on a 9950X:

Sorry if I'm stating the obvious and if I missed the context, but in general compression is more sensitive to branch prediction, while decompression is more sensitive to memory bandwidth (for not too complex compression algorithms). That's a generic statement that might apply or not to 7-zip My point is that changes to uarch don't apply the same to compression and decompression.
 
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