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

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csbin

Senior member
Feb 4, 2013
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It is quite possible that is affected as well. Zen 4 is starved for bandwidth as well.

We can actually determine this pretty easily by simply waiting for Turin benchmarks.

If non-SPEC INT “INT” tests are showing a 30-35% improvement, that suggests the problem is SPEC being limited in some way.

Note that I am it is the current chiplet design (especially 1 CCD parts!) that is limiting bandwidth, NOT DDR5. It also means Zen 6 should rectify the situation. 😈

🚂 ( hype train)

GMI3-Wide

AMD-EPYC-9004-Genoa-Chiplet-Architecture-GMI3-Narrow-and-GMI3-Wide.jpg
 

fastandfurious6

Senior member
Jun 1, 2024
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Where Zen 5 actually shines is temperature:
View attachment 104662
That's -35°C from 7700X to 9700X and still -15°C when both are running at 142W PPT. Thank god, this will hopefully end the thousands of "my CPU is running too hot" posts in German forums that I had to endure for Ryzen 7000 during the last two years.


Bingo, lots of OC headroom and proper mobile (Halo / Fire range) will really shine

zen5 is a perfect specimen to have perma-OC
 
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biostud

Lifer
Feb 27, 2003
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Per Phoronix:



Those are some impressive numbers and suggest Zen 5 server parts are going to be beastly. Since the architectural changes seem to favor work more so than gaming.
9700x is 15% better than the 7700X despite 65W TDP (88W PPT).
9600x is 25% better than the 7600X. And a full 82% better than the 5600X.
It does seem like the improvements primarily is workstation/HPC/power related. On the other hand if they can keep the high clocks then the 3D cache models might be interesting.
 

Hitman928

Diamond Member
Apr 15, 2012
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As a small note, guru3d also ran browser benchmarks on Windows and confirm the same (if not better improvement) that Phoronix saw in Linux. I find this result very interesting in light of all the other results. This is a near 40% improvement in performance per clock.

1723054592943.png
 

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static shock

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May 25, 2024
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It looks like the both processors, 6 or 8 cores have focus at professional loads but gaming was meh. I talk this because games heavily use the FP.
 

gaav87

Senior member
Apr 27, 2024
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What I don’t get is how / why Tom’s is showing a significant uplift in gaming with PBO on? Basically conflicting with every other source.

Just leaves me puzzled
  • Ryzen 7 9700X: Default power limits, DDR5-5600
  • Ryzen 7 9700X PBO: Precision Boost Overdrive (PBO) — advanced motherboard, 10X scalar, +200 MHz CPU clock, -20 Curve Optimizer, DDR5-6000 EXPO profile (fabric 2000 MHz, mclk/uclk 1:1)

    stock 5600mt/s vs expo, pbo +200mhz -20curve manualy tuned xD you answer
 

CakeMonster

Golden Member
Nov 22, 2012
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Some speculation: If Zen6 arrives in ~18 months or less, like very late 2025, I could imagine this looking better with hindsight. The IOD/memory issues could see a lot of improvement, keeping 8c CCX with N3* node improving transistor budget, as well as 'sweet spot' memory/sync being raised significantly above 6000.
 

Kepler_L2

Golden Member
Sep 6, 2020
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Some speculation: If Zen6 arrives in ~18 months or less, like very late 2025, I could imagine this looking better with hindsight. The IOD/memory issues could see a lot of improvement, keeping 8c CCX with N3* node improving transistor budget, as well as 'sweet spot' memory/sync being raised significantly above 6000.
Zen6 is 2027
 

Markfw

Moderator Emeritus, Elite Member
May 16, 2002
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He claims "40% IPC improvement in SpecInt" which turned out to be totally false. The picture shows the same thing. Geekerwan tests of both laptop and desktop parts show 9% gain in guess what? SpecInt.
maybe not He was comparing either 9950x vs 7950x or Turin vs Genoa. I am guessing Turin. Until those come out, I will not contest that number.
 

DavidC1

Platinum Member
Dec 29, 2023
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maybe not He was comparing either 9950x vs 7950x or Turin vs Genoa. I am guessing Turin. Until those come out, I will not contest that number.
Nope. He clearly says "Scalar Integer" which is what SpecINT is. Somebody faked the numbers and passed it around as fact.
 

CakeMonster

Golden Member
Nov 22, 2012
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Might be DDR6 then? I had absolutely called Zen6 as being still 8core CCX + DDR5, but I had also imagined it would arrive at maximum 24 months after Zen5.
 

Markfw

Moderator Emeritus, Elite Member
May 16, 2002
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Nope. He clearly says "Scalar Integer" which is what SpecINT is. Somebody faked the numbers and passed it around as fact.
My comparison could still be for these CPUs. I did not say what tests, so he still could be right.
 

ondma

Diamond Member
Mar 18, 2018
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If Zen 6 is a 2027 product, AMD is going to have a major problem remaining competitive in 2026.
Why? Most likely nearly 2025 for ARL, which probably will at best (for Intel) trade blows with Zen 5. Most of 2026 will be ARL refresh, which probably wont bring much to the table. Maybe 2027 will bring Nova Lake, which is rumored to be a significant step up, but the way Intel is executing now, I would not count on it either being on time or delivering the expected performance uplift. So if Zen 6 is late 2026 or early 2027, they should be fine.

I am talking on desktop. Mobile, I have no idea. I am not interested in that area, and the line-ups from both manufacturers are seriously confusing. So I dont know how things will stack up there, although AMD has a serious power advantage now, so even if Intel makes big gains in efficiency, I think AMD should also be fine in mobile.
 
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jdubs03

Golden Member
Oct 1, 2013
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Geekerwan managed to get spec results, +8.6% int & 26% fp.

View attachment 104679
I was looking at this too. Since its in this thread I wanted to post the further comparison of its competition. And ask a question:
Anyone have ideas why the i9-14900K values are the same, but the M4 and M3 FP values (but not INT) values are different?

I was thinking it could be due to the flags/compilers chosen, but the i9 would be different too then. The clock speeds are the same too.

1723060676811.png