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

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eek2121

Diamond Member
Aug 2, 2005
3,135
4,479
136
I am surprised to see nobody has brought up AT closing down yet.

At any rate, I want to try this patch pretty soon with my 7950X. First I have to figure out why my board seemingly has PCIE issues. I am actually glad X3D Zen 5 chips haven’t dropped yet, because it looks like I may need to get a new motherboard and RMA/sell this one.
 
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Thunder 57

Diamond Member
Aug 19, 2007
3,079
4,873
136
I am surprised to see nobody has brought up AT closing down yet.

At any rate, I want to try this patch pretty soon with my 7950X. First I have to figure out why my board seemingly has PCIE issues. I am actually glad X3D Zen 5 chips haven’t dropped yet, because it looks like I may need to get a new motherboard and RMA/sell this one.

Wow. I want to say I am surprised but I guess I really am not. The main site has been tanking for many years now. Ryan seemed to not care about fixing the problems. I will miss it though.
 

tsamolotoff

Senior member
May 19, 2019
218
446
136
To be fair there is a lot of conflicting reports, some people do see this uplift, some others don.t Can't even decide who is wrong and why the results are so different (is it VBS/HVCI getting randomly disabled or enabled, some GPU driver stuff, difference between JEDEC/XMP and tuned setups etc). I personally don't believe GoW5 uplift, but everything else looks plausible (albeit this can just only elevate W11 to W10 levels of CPU performance, but who knows, I'm not sure I'm ready to install this abomination just for 5-10% more fps in (some) CPU-limited games)
 
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GaiaHunter

Diamond Member
Jul 13, 2008
3,654
233
106
To be fair there is a lot of conflicting reports, some people do see this uplift, some others don.t Can't even decide who is wrong and why the results are so different (is it VBS/HVCI getting randomly disabled or enabled, some GPU driver stuff, difference between JEDEC/XMP and tuned setups etc). I personally don't believe GoW5 uplift, but everything else looks plausible (albeit this can just only elevate W11 to W10 levels of CPU performance, but who knows, I'm not sure I'm ready to install this abomination just for 5-10% more fps in (some) CPU-limited games)
I think a part of it is that reviewers use the same test bench, only swapping the CPU and AMD CPUS have become fiddly with either 1 or 2 CCXs, 3D cache or no 3D cache, leading to windows getting a bit "confused", while regular consumers might only have had 1 single CPU during their lifetime of windows installation.

Anyway, reinstall windows once in a while if you can, as it gets senile.
 
Reactions: marees

ikjadoon

Senior member
Sep 4, 2006
235
513
146
I'll update this chart later when the bigger SKUs launch, but thought I'd share my current GB6.2 1T "IPC" chart with available Zen5 SKUs. The relative 100% is QC's Oryon 80 SKU, but I'm a bit lazy to change it atm.

TL;DR: the HX 370 "IPC" is ever so slightly higher, so it now beats Arm's 2021 Cortex-X2 uArch and clocks a healthy +1.9 GHz higher.

//

Notebookcheck finally reviewed their 9700X, with its GB6.2 results added to the database (but not the review, though that's common of NBC). It actually had the highest score of any outlet by one point (not enough to change any calculations). A new high-scoring HX 370 has been added and that did shift its ranking +1.

CPUGB6.2 1T PtsPeak 1T Freq. (GHz)Pts / GHzPts / GHz %
Apple M4
3715​
4.400​
844​
118.7%​
Apple M3 Pro (12C)
3138​
4.056​
774​
108.8%​
Apple M2 Pro
2663​
3.504​
760​
106.9%​
Apple M1 Pro
2409​
3.220​
748​
105.2%​
Qualcomm X1E-80-100
2845​
4.000​
711​
100.0%​
Arm Cortex-X4 (8G3 Galaxy)
2287​
3.390​
675​
94.9%​
Arm Cortex-X3 (8G2 Galaxy)
2107​
3.360​
627​
88.2%​
AMD 9700X
3373
5.525
610
85.8%
AMD HX 370
2884
5.100
565
79.5%
Arm Cortex-X2 (8+G1)
1806​
3.200​
564​
79.3%​
Intel i9-14900K
3294​
6.000​
549​
77.2%​
AMD 7950X
3083​
5.700​
541​
76.0%​
Arm Cortex-X1 (G3X G1)
1596​
2.995​
533​
74.9%​
Intel i9-12900HK
2611​
5.000​
522​
73.4%​
Intel Ultra 185H
2573​
5.100​
505​
70.9%​
Intel Ultra 125U
2163​
4.300​
503​
70.7%​
AMD 7840U
2562​
5.100​
502​
70.6%​
Intel i7-1365U
2583​
5.200​
497​
69.8%​
Intel i5-1255U
2313​
4.700​
492​
69.2%​
AMD 6800H
2063​
4.700​
439​
61.7%​

FWIW, NBC's system used Windows 11 23H2 (Build 22621.3958; which is actually 22H2, maybe a typo on the numbering; I assume the build is correct); thus, this is pre-"branch prediction" fixes, but according to HardwareLuxx, it did not change much (but I'm willing to be disproven with benchmarks), emphasis mine:

Our workstation or synthetic benchmarks such as Cinebench, Blender, V-Ray, Corona, Handbrake or even 7-Zip and Geekbench do not benefit from the optimizations.
 

StefanR5R

Elite Member
Dec 10, 2016
6,056
9,106
136
I'm not even sure if the EPYC platform has a distinction between TDP and PPT
They are distinct, but have the same value by default. The user may set differing values for them within SKU dependent bounds.

As a further detail, "performance determinism" mode requires TDP = PPT (a.k.a. PPL); this mode is in turn the default mode for some but not all SKUs. (Performance determinism equalizes the performance across all CPUs of a given SKU by pulling down the better specimen in the silicon lottery bell curve to lower power levels. The alternative mode of operation is "power determinism", in which all CPUs of a given SKU are allowed to pull up as close as possible to the socket power limit, causing somewhat unequal performance between different specimen from the silicon lottery.)
 

DrMrLordX

Lifer
Apr 27, 2000
22,184
11,889
136
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.

That would explain some of the differences between the desktop and server Zen4/Zen5 results.


Not sure how this quote got mangled, good job multiquote! Anyway this isn't the right thread to be discussing the death of the main site. The forums live on regardless.

They are distinct, but have the same value by default. The user may set differing values for them within SKU dependent bounds.

As a further detail, "performance determinism" mode requires TDP = PPT (a.k.a. PPL); this mode is in turn the default mode for some but not all SKUs. (Performance determinism equalizes the performance across all CPUs of a given SKU by pulling down the better specimen in the silicon lottery bell curve to lower power levels. The alternative mode of operation is "power determinism", in which all CPUs of a given SKU are allowed to pull up as close as possible to the socket power limit, causing somewhat unequal performance between different specimen from the silicon lottery.)

Thanks for the correct information.
 

inquiss

Senior member
Oct 13, 2010
250
354
136
TL;DR: the HX 370 "IPC" is ever so slightly higher, so it now beats Arm's 2021 Cortex-X2 uArch and clocks a healthy +1.9 GHz higher.

//

Notebookcheck finally reviewed their 9700X, with its GB6.2 results added to the database (but not the review, though that's common of NBC). It actually had the highest score of any outlet by one point (not enough to change any calculations). A new high-scoring HX 370 has been added and that did shift its ranking +1.

CPUGB6.2 1T PtsPeak 1T Freq. (GHz)Pts / GHzPts / GHz %
Apple M4
3715​
4.400​
844​
118.7%​
Apple M3 Pro (12C)
3138​
4.056​
774​
108.8%​
Apple M2 Pro
2663​
3.504​
760​
106.9%​
Apple M1 Pro
2409​
3.220​
748​
105.2%​
Qualcomm X1E-80-100
2845​
4.000​
711​
100.0%​
Arm Cortex-X4 (8G3 Galaxy)
2287​
3.390​
675​
94.9%​
Arm Cortex-X3 (8G2 Galaxy)
2107​
3.360​
627​
88.2%​
AMD 9700X
3373
5.525
610
85.8%
AMD HX 370
2884
5.100
565
79.5%
Arm Cortex-X2 (8+G1)
1806​
3.200​
564​
79.3%​
Intel i9-14900K
3294​
6.000​
549​
77.2%​
AMD 7950X
3083​
5.700​
541​
76.0%​
Arm Cortex-X1 (G3X G1)
1596​
2.995​
533​
74.9%​
Intel i9-12900HK
2611​
5.000​
522​
73.4%​
Intel Ultra 185H
2573​
5.100​
505​
70.9%​
Intel Ultra 125U
2163​
4.300​
503​
70.7%​
AMD 7840U
2562​
5.100​
502​
70.6%​
Intel i7-1365U
2583​
5.200​
497​
69.8%​
Intel i5-1255U
2313​
4.700​
492​
69.2%​
AMD 6800H
2063​
4.700​
439​
61.7%​

FWIW, NBC's system used Windows 11 23H2 (Build 22621.3958; which is actually 22H2, maybe a typo on the numbering; I assume the build is correct); thus, this is pre-"branch prediction" fixes, but according to HardwareLuxx, it did not change much (but I'm willing to be disproven with benchmarks), emphasis

What's points per GHz got to do with it? Different architectures have different ways to get the same answer. Points per watt I'd understand. Otherwise just rank by performance.
 

Hitman928

Diamond Member
Apr 15, 2012
6,390
11,392
136
I find it funny that HWC says that there are no big gains to be found unless you make their same mistake of using VBS off with 2H24. For the games they and HWUB both tested, they showed fairly similar uplift. The difference comes when you look at the games HWUB tested that show a large uplift and look at HWC's games and see that they only tested like 1 of those games.

HWUBHWC
Starfield​
0.00%​
4.73%​
Cyberpunk​
7.20%​
10.50%​
Counter Strike 2​
2.00%​
7.94%​
Baulder’s Gate 3​
1.70%​
-1.20%​
Forza Horizon 5​
5.60%​
0.39%​
Horizon Forbidden West​
0.60%​
-1.19%​
Total War: Warhammer 3​
3.90%​
0.28%​
Gears 5
35.10%​
Fortnite
30.60%​
Remnant 2
22.30%​
Star Wars: Jedi Survivor
21.90%​
World War Z
21.50%​
Homeworld 3
20.00%​
The Calisto Protocal
19.50%​
The Riftbreaker
19.20%​
Party Animals
19.10%​
Forza Motorsport
18.50%​
Call of Duty: Modern Warfare 3
17.70%​
F1 24
17.20%​
Hogwarts Legacy
17.20%​
14.10%​
Rocket League
16.10%​
Far Cry 6
15.40%​
Microsoft Flight Simulator 2024
15.20%​
 

DisEnchantment

Golden Member
Mar 3, 2017
1,749
6,614
136
What's points per GHz got to do with it? Different architectures have different ways to get the same answer. Points per watt I'd understand. Otherwise just rank by performance.
It is for a future version of GB. The total ST score is simply the total ST points divided by the frequency detected. Basically an extension of their way of calculating MT score applied to ST.
 
Jul 27, 2020
20,902
14,489
146
Maybe I'm just weird, but I would totally watch/read a benchmark of the difference between VBS/Core Isolation/HVCI on/off on the last ~5 generations of CPU's from both AMD and Intel.
Best to do something like that with an automated testsuite like Phoronix's. Testing all that manually is a real pain. Or just use PCMARK10 and call it a day.
 

jdubs03

Golden Member
Oct 1, 2013
1,079
746
136
Riiiggght. But it's pointless. Who cares what frequency it's at?
It’s a proxy for clock normalized single-core performance. That’s all. I don’t think it’s completely useless. It’s gives a general ranking of the performance of each p-core. Particularly within microarchitectures.
 

inquiss

Senior member
Oct 13, 2010
250
354
136
It’s a proxy for clock normalized single-core performance. That’s all. I don’t think it’s completely useless. It’s gives a general ranking of the performance of each p-core. Particularly within microarchitectures.
Why use a proxy when you have the actual scores? If Apple cores are twice as fast per clock but clocked half as fast then they have the same performance. The follow on is then which used the most power, so iyou use performance per watt. Ranking by performance per clock is..meaningless. Just means it targeted a different frequency in the design.
 
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