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

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Nothingness

Diamond Member
Jul 3, 2013
3,031
1,972
136
Like @SarahKerrigan , you misattributed someone else's post to me but it's OK, I feel pretty flattered that mine is the first name that pops up in the head of hardcore CPU lovers

My apologies to you and @FlameTail
 
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Josh128

Senior member
Oct 14, 2022
292
405
96
Above 5.35ghz fmax (stock) together with 2x L1, ~1.4x L2 and ~1.15x L3 cache bandwidth
Ontop of 7ns L3 and the core IPC gains going from Z4 to Z5

What do you think the final gaming performance uplift will be vs the 7800x3d ?

I'll stick with my assumption that vanilla Zen 5 is ~10% faster than vanilla Zen 4 in games, so I think that plus clock advantage over 7800X3D which would be 14% or so.

Theres a small chance that the L3 will allow the Zen 5 core to stretch its legs more than the Zen 4 core could, but thats pure speculation.
 
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gaav87

Member
Apr 27, 2024
117
154
76
I would be surprised if he was able to get UCLK going at 3600. I'm expecting it was 2:1 mode at 7200/1800/2400
Highest IF on Zen4 is 2200 at like 1.35VSOC right ? And hes doing 2400IF. Wouldnt be unreasonable to think that max uclk is now 3600 up from 3300(highest iv seen).
Saw igor's lab comparison for 1:2 on zen4 its from 2022 on rtx3090 the difference is ~1-5% regresion for 1:2 vs 1:1
 

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Hail The Brain Slug

Diamond Member
Oct 10, 2005
3,487
2,408
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Highest IF on Zen4 is 2200 at like 1.35VSOC right ? And hes doing 2400IF. Wouldnt be unreasonable to think that max uclk is now 3600 up from 3300(highest iv seen).
Saw igor's lab comparison for 1:2 on zen4 its from 2022 on rtx3090 the difference is ~1-5% regresion for 1:2 vs 1:1
Personally I would suspect the entire setup is potentially unstable. Then again, there are very few people I have any faith in for tuning this kind of thing.

Zen 3 didn't see any real substantial increase in FCLK or UCLK over Zen 2 on the same IOD, maturity helped very little.
 
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Det0x

Golden Member
Sep 11, 2014
1,231
3,864
136
I would be surprised if he was able to get UCLK going at 3600. I'm expecting it was 2:1 mode at 7200/1800/2400

Highest IF on Zen4 is 2200 at like 1.35VSOC right ? And hes doing 2400IF. Wouldnt be unreasonable to think that max uclk is now 3600 up from 3300(highest iv seen).
Saw igor's lab comparison for 1:2 on zen4 its from 2022 on rtx3090 the difference is ~1-5% regresion for 1:2 vs 1:1
Have he actally said he was running 2400 FCLK ?
I very much doubt so.. More likely 1800 or 2000 i would say

*edit*
Found the comment


But i still don't believe he was running 2400mhz FCLK 🤣
 
Last edited:

soresu

Diamond Member
Dec 19, 2014
3,191
2,463
136
It's not. Warhammer 3 battles are pretty insane.
Dunno about that.

Even 11 years after the first 8 core CPUs in game consoles it's still quite common to find newish games with bad multi threading and most of the heavy lifting dumped on only 1-2 threads, one of which contains the UI/main rendering.

Even UE5 does not address it well off the shelf.

Thankfully one of the items in UE5's "forward looking" roadmap is a big MT overhaul:

 

Goop_reformed

Senior member
Sep 23, 2023
307
337
96
Dunno about that.

Even 11 years after the first 8 core CPUs in game consoles it's still quite common to find newish games with bad multi threading and most of the heavy lifting dumped on only 1-2 threads, one of which contains the UI/main rendering.

Even UE5 does not address it well off the shelf.

Thankfully one of the items in UE5's "forward looking" roadmap is a big MT overhaul:
Pretty sure about it because I'm a Total War veteran. The campaign map is gigantic and the average battle usually involves up to 5000 units all moving at once. Double that with Skaven / Vampires-zombies battles. If zen 5 is about the same as 7800x3d I'm positive that's a good sign.
 

Markfw

Moderator Emeritus, Elite Member
May 16, 2002
26,065
15,200
136
Are the Epyc 7005 series also using SP6?
Milan and Rome use socket SP3, all of them. Genoa, all variants use SP5. SP6 does not come out until Zen 5 variants. That is if you are talking about sockets.

I have all but Milan-x but they also use SP3
 
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mostwanted002

Member
Jun 16, 2023
33
66
61
mostwanted002.page
They are available now on ebay. Prices are not bad, since Zen 4 server chips are so good. I would recommend them over Milan-x.
I'd love to but the motherboard costs kill my wallet. I'd like to just drop in an upgrade in my existing board.

Storytime: The $80 bet I placed on an eBay EPYC CPU

The seller listed it for parts as "I don't have the equipment to test it, hence selling it for parts. No returns."

I looked at the pictures, CPU looked fine in pictures. So I placed an $80 bid and won. It was EPYC 7F72 (Rome)

It cost me around $200 or so when I received it in my country (cost+shipping+customs duty), still not bad. I looked at the CPU more closely and found, one of the SMDs on the back of the CPU is just popped off. like it burnt and removed itself from the CPU but still stuck to the CPU. I was like damnnn... Did I just buy a $200 coaster?

Talked to a few fellas in the Level1Techs discord server, and they told me that the CPU has a 90% chance of working. They don't need all the SMD caps/res on the back.

I was looking for used EPYC SP3 motherboards with PCIe Gen4 and ample PCIe x16 slots (was planning a multi-GPU rig out of this)

found Asrock Rack ROMED8-2T, a lovely board. Has everything I need. $690 on NewEgg/BestBuy. RIP. Even if I imported it, would've cost me more than $1k. EBay listings were from China and were even more expensive.

Found an authorized distributor in my country, and bought the board for $800 (cost + taxes). The $80 gamble has now turned into a ~$1k investment 🤣🤣

Bought a pair of 8GB RDIMMs just to test if it POSTs. To my fucking surprise, it just worked. all memory channels. everything. I just placed the CPU in the board, installed memory, and viola!! IT HAD A POST. Proceeded to order 64GB x 4 kit from EBay seller. And it's running great now.


TL;DR
Bought a burnt EPYC CPU for $80 in an eBay gamble, and it worked. The motherboard is expensive.
 

Markfw

Moderator Emeritus, Elite Member
May 16, 2002
26,065
15,200
136
I'd love to but the motherboard costs kill my wallet. I'd like to just drop in an upgrade in my existing board.

Storytime: The $80 bet I placed on an eBay EPYC CPU

The seller listed it for parts as "I don't have the equipment to test it, hence selling it for parts. No returns."

I looked at the pictures, CPU looked fine in pictures. So I placed an $80 bid and won. It was EPYC 7F72 (Rome)

It cost me around $200 or so when I received it in my country (cost+shipping+customs duty), still not bad. I looked at the CPU more closely and found, one of the SMDs on the back of the CPU is just popped off. like it burnt and removed itself from the CPU but still stuck to the CPU. I was like damnnn... Did I just buy a $200 coaster?

Talked to a few fellas in the Level1Techs discord server, and they told me that the CPU has a 90% chance of working. They don't need all the SMD caps/res on the back.

I was looking for used EPYC SP3 motherboards with PCIe Gen4 and ample PCIe x16 slots (was planning a multi-GPU rig out of this)

found Asrock Rack ROMED8-2T, a lovely board. Has everything I need. $690 on NewEgg/BestBuy. RIP. Even if I imported it, would've cost me more than $1k. EBay listings were from China and were even more expensive.

Found an authorized distributor in my country, and bought the board for $800 (cost + taxes). The $80 gamble has now turned into a ~$1k investment 🤣🤣

Bought a pair of 8GB RDIMMs just to test if it POSTs. To my fucking surprise, it just worked. all memory channels. everything. I just placed the CPU in the board, installed memory, and viola!! IT HAD A POST. Proceeded to order 64GB x 4 kit from EBay seller. And it's running great now.


TL;DR
Bought a burnt EPYC CPU for $80 in an eBay gamble, and it worked. The motherboard is expensive.
well, this is a Zen 5 thread, so this is my last post. I got s 9554 for $2500, and the motherboard for $715. The memory was $75 for a 16 gig stick for as many as I wanted. Blows away Rome in every respect, especially avx-512 stuff. So looking forward this should be your target.

Back to Zen 5 !!!!
 
Reactions: mostwanted002

Joe NYC

Platinum Member
Jun 26, 2021
2,466
3,349
106
Milan and Rome use socket SP3, all of them. Genoa, all variants use SP5. SP6 does not come out until Zen 5 variants. That is if you are talking about sockets.

I have all but Milan-x but they also use SP3

IIRC, SP6 is for Siena - lower tier server chips with fewer memory channels.
 
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