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

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DisEnchantment

Golden Member
Mar 3, 2017
1,684
6,227
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I'm still wondering how will the reviews present the - currently expected - ~16% ST gain compared to ~29% of Zen 4 or ~25% of Zen 3.
I bet something like this
Total domination, Intel doomed, Intel should be worried... etc.
Benchmarks show +5% over Intel's best.

On Intel's launch,
Total Domination, AMDoomed etc..
Benchmarks show +5% over AMD's best.

Review Media is garbage now. I can see Jayz2cents already caption "Why I am switching to AMD"
 

Goop_reformed

Senior member
Sep 23, 2023
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15% uplift is a whole lot better than a frickin' regression.

Indeed, but it is still disappointing considering previous progresses.

uhm, I don't think AMD expect zen4 home users to upgrade to zen5 for ST performance.

If you're a gamer with zen3 or older zen5 might be a viable option or wait for the X3D version.
If you're a gamer with a regular zen4 you'll at least wait for zen5 X3D.
If you're a gamer with a zen4 X3D you'll wait for zen6

zen5 is an evolutionary generation that for home useres will help AMD stay competitive against intel, but mostly it will help them stay competitive in the Threadripper/EPYC segment.
I actually think Zen 5 has bugs but still ended up exactly what Amd had envisioned. It doesn't seem impressive because Zen 4 had to do compete with Raptor Lake w/ sky high clock.
And the CPU is far from launch. It is best to reserve judgement until the reviews are in. Then we can shame and blame AMD if needed

Why would AMD chose to sandbag? Doesn't make sense.
 
Jul 27, 2020
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Indeed, but it is still disappointing considering previous progresses.
Intel could've pushed them a bit to do better if only Intel had put Redwood Cove on Intel 7 and clocked it to 6 GHz.

AMD isn't gonna give free performance now that they have established themselves in the enterprise space. With the original Zen, they needed as much of a boost as possible to restore confidence in their products and the company itself. If it had been a 100% uplift from DozerBull, they wouldn't have held back on delivering that.
 

Gideon

Golden Member
Nov 27, 2007
1,709
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Interesting, this Minisforum AtomMan G7 MiniPC that will be released on July 10th will give an early glimps of the Strix Halo gaming performance:



It has a 7945HX (16 core Dragon Range CPU) + a 32CU 7600M XT in a rather spacious form-factor.

Strix Halo should offer better performance with its 40 RDNA 3.5 CUs and Zen 5, but it will probably be cooling limited in thin and light laptops.

The effective bandwidth of the two GPUs should be very similar (256 GB/s with LPDDRX-8000 vs 288 GB/s for 7600M XT). The MALL / L3 is the same size (but Strix needs to share stuff with the CPU). And while Strix has 25% more CUs (possibliy also clocked higher based on Strix Point's 2.9 Ghz) I don't think it will outpace the 7600M by more than 20-30% at most.

It won't be the same but the ballpark will be similar.
 

Timmah!

Golden Member
Jul 24, 2010
1,457
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The quality of the GPU render is awful next to the CPU render, and it's barely touched on in that blog post, and only in passing. The time comparison was definitely not to achieve the same end result.
Thats really dependent on what exactly do you need to do, but for standard exterior archviz renders something like Octane Render is perfectly fine (aside of possible VRAM issue). When you put its output next to same picture done in something like Vray or Corona there is no visible downgrade in quality.
 

poke01

Golden Member
Mar 8, 2022
1,380
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Highest scoring ST run so far, 4+6 ES doing
2839 @ 4.4, so around 645 pts/GHz.

@DisEnchantment you might be bang on the money with your assessment.

This one is GB 6.2.2 the other a few days ago was 6.3. Can’t these people use the latest Geekbench? 😅
 

Jan Olšan

Senior member
Jan 12, 2017
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Folks attempt to make iso-core-clock performance comparisons based on benchmark runs on dynamically clocked computers. This approach has... caveats.
Also Geekbench famously has huge spreads in scores of the same CPUs based on software, OS and RAM config, so there is extreme margin of error when you just take two individual results and compare them.
 

tsamolotoff

Member
May 19, 2019
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Also Geekbench famously has huge spreads in scores of the same CPUs based on software
Another thing - the scores that i've published yesterday were done with CPU correctly boosting up to 5.75ghz, while GB shows (.gb6) that it was running at 5.5 ghz (which is actually the light multithreaded clock limit since some early-time AGESA). I checked it with hwinfo and it is congruent with dom's +200 fmax score
 

deasd

Senior member
Dec 31, 2013
551
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It is weird that Geekbench often read the clock lower than spec when comes to new hardware which are not released.

Lunarlake U7 268V has 5.0Ghz max but GB read it 4.8Ghz max, it seems GB may need a revise or update the algorithm for these new hardware.

But it could explain those old Strixpoint GB leak which were also being read lower clock. These new CPUs are either poorly boosted in GB but still being read the clock correctly, or completely mess up that both clock reading and real boost clock are wrong.
 
Jun 1, 2024
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It is weird that Geekbench often read the clock lower than spec when comes to new hardware which are not released.

Lunarlake U7 268V has 5.0Ghz max but GB read it 4.8Ghz max, it seems GB may need a revise or update the algorithm for these new hardware.

But it could explain those old Strixpoint GB leak which were also being read lower clock. These new CPUs are either poorly boosted in GB but still being read the clock correctly, or completely mess up that both clock reading and real boost clock are wrong.

intel keeps being unable to create high perf/watt chips in their new nodes

it's either 20watt ULV in new nodes or 300watt monsters in old nodes, consistent pattern

this is reflected in meteor lake regression as well

can someone explain this pattern in real terms
 
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