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

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CouncilorIrissa

Senior member
Jul 28, 2023
233
809
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Yeah, it's lower power behaviour is sort of dodgy, but I wasn't sure whether it's something unique to PHX1 or common for anything-not-Van Gogh.

But I think I saw some graphs on X suggesting that HWK1 is a bit better in this regard.
 

Goop_reformed

Senior member
Sep 23, 2023
213
285
96
No, the poster was implying the average IPC is 3x% ( meaning between 30 and 39%). Clocks seem to be roughly the same or a slightly higher for ST with Zen 5. Overall it looks like a total pwnage.
Monthly corrections + plus "I told you so" incoming. There's also a recent video about the number 37 so I'll take 37% ipc uplift

However, heat is a major for me and for many others as the 7800x3d is just that good/cool.
 

H433x0n

Golden Member
Mar 15, 2023
1,040
1,201
96
Interesting that GB6 wasn’t shared by AMD. That’s the most representative benchmark (IMO) and would give a good idea of the overall performance.
 

Tigerick

Senior member
Apr 1, 2022
686
574
106
IPC Uplifts are not the same as Performance Numbers



CB R23 1TPassmark7-ZipV-RayDolphinwPrime (1024M)
Zen 3 5950X
(3.4 - 4.9GHz, 105W)
165534681657482973822749.434
Zen 4 7950X
(4.5 - 5.7 GHz, 170W)
2066.842902096164236717030.957
+ %+ 25%+ 24%+ 26%+ 42%+ 33.5%+ 60%
Zen 4 IPC @ 4GHz
Average +13%
+ 9%+ 5%+ 13%+ 15%+ 32%+ 39%
Zen 5 16-core
(4.3 - 5.7 GHz, 170W)
Zen 5 IPC @ ? GHz
Average +16%
+ 17%


I can't believe people don't understand the difference between performance numbers and IPC uplifts. As shown in the table above, performance numbers of Zen4 are far better than Zen3 and yet the IPC uplifts tested by AMD shown average 13% better uplifts. The reason is because Zen4 is clocked much higher than Zen3 thus consume more power.

IPC of Zen5 would be much lower, my estimate IPC would be around 15-20% faster...Definitely not 40% uplift as adroc claimed.

@adroc_thurston Do you still think your 40% is IPC or performance numbers?

 
Last edited:

gdansk

Platinum Member
Feb 8, 2011
2,454
3,316
136
Interesting that GB6 wasn’t shared by AMD. That’s the most representative benchmark (IMO) and would give a good idea of the overall performance.
For Zen 4? AMD haven't shared anything for Zen 5 yet. But GB6 wasn't out yet when Zen 4 launched.
GB6 shows Zen 4 as 35%-40% better 1T than Zen 3 while generally it's closer to 25%. Normalize for clock rate and it's still an outlier making Zen 4 look better than it is.
 

Tigerick

Senior member
Apr 1, 2022
686
574
106
It s just that CB starting from R20 is the best case for Intel among all tests along with Povray wich use AVX2 only for Intel, let s look at 7 ZIP wich is integer code and more representative of consumer apps, you ll be surprised.
There is leaks about 7-Zip numbers from Allthewatts, 28% faster score is 8 percent faster. I am not surprised cause I believe IPC numbers would be lower. What do you think?
 

Kaffeekenan

Member
Jan 6, 2022
50
80
61
IPC Uplifts are not the same as Performance Numbers
View attachment 96183



CB R23 1TPassmark7-ZipV-RaywPrime (1024M)
Zen 3 5950X (4.9GHz, 105W)1655346816574829738
Zen 4 7950X
(5.7 GHz, 170W)
2066.8429020961642367
+ %+ 25%+ 24%+ 26%+ 42%
Zen 4 IPC 4GHz
Average +13%
+ 9%+ 5%+ 13%+ 15%+ 39%
Zen 5 16-core
(? GHz)
+ 20%+ 11%+ 28%+ 33%+ 86%
Zen 5 IPC 4GHz
Average ?


I can't believe people don't understand the difference between performance numbers and IPC uplifts. As shown in the table above, performance numbers of Zen4 are far better than Zen3 and yet the IPC uplifts tested by AMD shown average 13% better uplifts. The reason is the because Zen4 is clocked much higher than Zen3 thus consume more power.

The same will happen to Zen5; I am sure AMD will try to clock Zen5 higher, hence the leaked results are ranged from 11% to 86%. But IPC of Zen5 would be much lower, my estimate IPC would be around 15% faster...Definitely not 40% uplift as adroc claimed.

@adroc_thurston Do you still think your 40% is IPC or performance numbers?

Zen 5 and Zen 4 will be clocked almost the same so you will not see the big clockboost like from Zen 3 to Zen 4. So IPC and performance will be kinda close with Zen 5. Cause more performance is caused by more ipc and more clocks...
 

CouncilorIrissa

Senior member
Jul 28, 2023
233
809
96
IPC Uplifts are not the same as Performance Numbers
View attachment 96183



CB R23 1TPassmark7-ZipV-RaywPrime (1024M)
Zen 3 5950X (4.9GHz, 105W)1655346816574829738
Zen 4 7950X
(5.7 GHz, 170W)
2066.8429020961642367
+ %+ 25%+ 24%+ 26%+ 42%
Zen 4 IPC 4GHz
Average +13%
+ 9%+ 5%+ 13%+ 15%+ 39%
Zen 5 16-core
(? GHz)
+ 20%+ 11%+ 28%+ 33%+ 86%
Zen 5 IPC 4GHz
Average ?


I can't believe people don't understand the difference between performance numbers and IPC uplifts. As shown in the table above, performance numbers of Zen4 are far better than Zen3 and yet the IPC uplifts tested by AMD shown average 13% better uplifts. The reason is the because Zen4 is clocked much higher than Zen3 thus consume more power.

The same will happen to Zen5; I am sure AMD will try to clock Zen5 higher, hence the leaked results are ranged from 11% to 86%. But IPC of Zen5 would be much lower, my estimate IPC would be around 15% faster...Definitely not 40% uplift as adroc claimed.

@adroc_thurston Do you still think your 40% is IPC or performance numbers?
In order to get 40% perf uplift with 15% IPC gains you'd need a whopping 21% clock speed increase. That would mean a literal 5.7*1.21 = 6.9 GHz (lol) for the top SKU, on the same node no less.
 
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