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

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Ghostsonplanets

Senior member
Mar 1, 2024
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per TechPowerUp, 11% uplift 9700X (with unlimited PBO) over 7700X at RPCS3 PS3 emulation, AVX 512 enabled.... what is going on !?


View attachment 104647
AVX-512 is only a small part of RPCS3. A big uplift on it won't translate to the same uplift for the PS3 emulator
No way, no way!
AMD can't "survive" selling this for another 2 years! Not for "average consumers".
Zen 6 needs to come in 12 months at most!
? AMD is fine. Core will do well on servers, it will be competitive on mobile and they'll have a cost advantage there. And it's a much more efficient core for Office/General DT tasks. The only public that will be disappointed will be the gaming one.

But that doesn't mean they'll need to rush Z6. If anything, they need to make sure Z6 improves radically over Z5.
 
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MS_AT

Member
Jul 15, 2024
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This y-cruncher result from AT makes me giggle. [For me AVX512 is the only reason to buy the chip,
From AT's review - there are some workloads (e.g. AVX512) where the new architecture truly shines...
View attachment 104653
and this even does not use Zen5 optimized Y-Cruncher

BTW nice in-depth analysis from y-cruncher creator but probably not useful to most people http://www.numberworld.org/blogs/2024_8_7_zen5_avx512_teardown/ it explains why RPC3 did not see a boost.
 

CouncilorIrissa

Senior member
Jul 28, 2023
518
1,982
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This y-cruncher result from AT makes me giggle. [For me AVX512 is the only reason to buy the chip,

and this even does not use Zen5 optimized Y-Cruncher

BTW nice in-depth analysis from y-cruncher creator but probably not useful to most people http://www.numberworld.org/blogs/2024_8_7_zen5_avx512_teardown/ it explains why RPC3 did not see a boost.
LOL:
The 40% IPC improvement in SpecInt (an early leak) is consistent with my tests showing 30-35% improvement in raw scalar integer that isn't memory-bound.
Could you post this in the architecture thread? This is very interesting.
 

CakeMonster

Golden Member
Nov 22, 2012
1,490
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- the Computerbase review clearly shows IPC is a double-digit increase over Zen4, including in games. It even blows Raptor IPC out of the water by quite a bit, despite only half the L2 and 67% the L3 per core.
Clockspeed (especially all-core) is all it's lacking, which is partially the result of the low default TDP, partially due to the backport from N3E to N4P.
Agreed, this started yesterday with the clowns who tweeted about 'failure' comparing it to the previous generation with X3D, which is misleading on so many levels. Just because X3D cache is an impressive addition for some usages, doesn't mean the base architecture is a failure. It just means the extra cache has a huge impact in those benchmarks. The right comparison would be to the vanilla models, and from what I see so far there may be some valid criticism to some multithread benchmarks over Zen4 vanilla (prob power limited), but overall it seems like a good iterative step.

On a different topic, I'd have absolutely loved to see this architecture on N3*. But it seems both NV and AMD cheaped out, and are saving N3* for the generations launching in 2026.
 

tsamolotoff

Member
May 19, 2019
170
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For gamers, there is the X3D variant to wait for.
I concur, if I bought a new CPU solely for gaming, I would wait for x3d anyway even if the prophesized 40% (int) ipc was really there. Extra cache is basically heaploads of (almost) free performance, no sense in rushing and buying something that can be 50% slower in games where CPU performance really matters (extraction shooters, MMOs, various competitive games that x3d especially excels at)
 
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branch_suggestion

Senior member
Aug 4, 2023
370
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BTW nice in-depth analysis from y-cruncher creator but probably not useful to most people http://www.numberworld.org/blogs/2024_8_7_zen5_avx512_teardown/ it explains why RPC3 did not see a boost.
That chart is a real eye opener, the core is future looking and as more programs are built with AVX-512 in mind, along with anything heavy on scalar INT, the thing will look better over time.
Goes to show how prevalent SSE and early AVX implementations are, especially on Windows.
 

Rheingold

Member
Aug 17, 2022
55
150
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Regarding PBO, wider cores, and how much performance is left on the table for the 9700X:



This shows the wattage provided for the cores when using 88W or 142W PPT. The limit for the cores is always lower than the overall limit. The 7700X (blue) isn't limited during full load when using 142 watts, but the Zen 5 cores in the 9700X (black) is still being capped at that limit. This shows the increased power requirements of the wider cores, and raises the question why AMD chose to lower the TDP classes for this of all generations. It's an ecological but odd choice. This also means that there is more performance to be gained from PBO than before.
 

CakeMonster

Golden Member
Nov 22, 2012
1,490
650
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Not releasing the reviews of the whole lineup on the same day smells like a PR disaster for AMD, the higher models should be less power limited. You really don't want those (even if few) benchmarks that show a tiny regression to get much media attention.
 
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