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

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ST is in line with what AMD presented (~17% faster) while MT is a bit lower, maybe because of a more limited PPT for 9900X?
 
Nothingness said:
I don't see 7900X Linux scores 10% higher than Windows one. But I might be missing something; looking into GB database is such a pain 🙁
Click to expand...
Earlier in the thread I demonstrated a 5-6% ST uplift from W11 to Linux on my 7950X.

5% on Debian, 6% on Manjaro (Arch)

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

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forums.anandtech.com
 
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Nothingness said:
If you look at the result @yuri69 posted above you can guess 😉
The largest outlier is Object Remover.
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Yeah but how much does the weighting of the tests meaningfully affected change the actual score? We'd need a run with and without AVX512 enabled to really know.

I could do that on my 7950X but I'm not sure how valuable it would be over having a Zen 5 sample to run.
 
Hail The Brain Slug said:
Yeah but how much does the weighting of the tests meaningfully affected change the actual score? We'd need a run with and without AVX512 enabled to really know.

I could do that on my 7950X but I'm not sure how valuable it would be over having a Zen 5 sample to run.
Click to expand...
Indeed. But that still helps estimating what the improvements are for tests that don't benefit from AVX-512. And here clang is a bit of a disappointment while HTML5 is a surprise. Let's wait a few more days to get a more accurate picture.
 
igor_kavinski said:
Isn't clang going to need compiler patches for Zen 5 support? That also means that GB6 may need a revision.
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Do you realize that'd mean all legacy code would need recompilation to be fast on Zen5?

That's not how things work. And that's why OoOE is required to have a fast CPU (until things change dramatically in the HW/SW space...): to let a beefed up core benefit from its extra ressources without having to recompile everything. And all modern CPU are good at that.

I can't remember when was the last time, recompiling with instruction scheduling for native CPU brought any significant speedup (>2%, that is not in measurement noise) for code I run. Of course native instruction selection is a different story but that doesn't apply to clang.
 
A bit unrelated, but does mention Zen 5 :
www.techpowerup.com

AMD is Becoming a Software Company. Here's the Plan

Just a few weeks ago, AMD invited us to Barcelona as part of a roundtable, to share their vision for the future of the company, and to get our feedback. On site, were prominent AMD leadership, including Phil Guido, Executive Vice President & Chief Commercial Officer and Jack Huynh, Senior VP &...
www.techpowerup.com www.techpowerup.com

The slide AMD used shows the previously disclosed IPC figure, so it seems they are sticking to it
1720452648757.png
 
Nothingness said:
Indeed. But that still helps estimating what the improvements are for tests that don't benefit from AVX-512. And here clang is a bit of a disappointment while HTML5 is a surprise. Let's wait a few more days to get a more accurate picture.
Click to expand...

Gigabyte Technology Co., Ltd. X670E AORUS XTREME vs Gigabyte Technology Co., Ltd. X670E AORUS XTREME - Geekbench

browser.geekbench.com browser.geekbench.com

W10 AVX 512 on/off. Hardly any difference. Ignore comparison to previous W11 scores, W10 seems to score slightly better for ST.
 
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