Question Zen 6 Speculation Thread

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branch_suggestion

Senior member
Aug 4, 2023
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Would love that, but seriously, how do you do "enhanced INT" on the same multi use core?
If they put all the Zen6c cores as server cores and beeeg Zen6 cores for DT, different story, but...doesn't seem to be the goal yet.
Out of curiosity what do people mean by enhanced INT performance? Enhanced memory sub-system performance? Better branch prediction? Different decode scheme?
Easy, bigger ROB, bigger INT PRF, moar schedulers, stuff like that.
 

poke01

Golden Member
Mar 8, 2022
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Zen 6 will still be bigger than Zen5. Moving to N3E/N3P on both the CCD and IOD. Improved memory controller and hopefully newer memory standards like LPCAMM. Not accounting for the minor core upgrades.

I have faith in the Zen team but the biggest issue is the cadence. It should be 16-18 months, over 24 months is crazy talk.
 

gdansk

Platinum Member
Feb 8, 2011
2,843
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I have faith in the Zen team but the biggest issue is the cadence. It should be 16-18 months, over 24 months is crazy talk.
Yeah it's more crazy talk. AMD client group would probably die. Zen 6 for *servers* in 2027? Might be the case. But there must be something for laptops before that.
 

FlameTail

Diamond Member
Dec 15, 2021
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Yeah it's more crazy talk. AMD client group would probably die. Zen 6 for *servers* in 2027? Might be the case. But there must be something for laptops before that.
2024 Computex: Strix Point, Granite Ridge
2025 CES: Kraken Point, Strix Halo
2025 Computex: Bald Eagle Point
2026 Computex: Medusa Point, Media Halo
2027 CES: Medusa Ridge
(Speculation)

Kepler L2 speculated that the reason for rb delay for 2027 was because desktop Zen6 used LPDDR6, and LPDDR6 LPCAMM modules won't be available until 2027....
 
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gdansk

Platinum Member
Feb 8, 2011
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2024 Computex: Strix Point, Granite Ridge
2025 CES: Kraken Point, Strix Halo
2025 Computex: Bald Eagle Point
2026 Computex: Medusa Point, Media Halo
2027 CES: Medusa Ridge
(Speculation)

Kepler L2 speculated that the reason for rb delay for 2027 was because desktop Zen6 used LPDDR6, and LPDDR6 LPCAMM modules won't be available until 2027....
So per your speculation AMD is to launch a desktop part that will score ~3900 GB6 1T in early 2027?

I think M6 would be available by that time and what do you reckon that would score?
 

CakeMonster

Golden Member
Nov 22, 2012
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Seems like the mood on various forums is a hope for N3* refresh in 25/26. No idea if that is even realistic if it wasn't planned for all along.
 

CouncilorIrissa

Senior member
Jul 28, 2023
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Yeah it's more crazy talk. AMD client group would probably die. Zen 6 for *servers* in 2027? Might be the case. But there must be something for laptops before that.
The client revenue would indeed crater. STX will probably be the weakest 1T core by the end of 2024. Imagine how bad it will look in 2026, on a dated node, with atrocious C2C latency. That would mean forfeiting the entire laptop market.
 
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gdansk

Platinum Member
Feb 8, 2011
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Seems like the mood on various forums is a hope for N3* refresh in 25/26. No idea if that is even realistic if it wasn't planned for all along.
It's doable but what's the advantage? Cost more to make for a higher average all core clock? Not hopeful it allows 1T boost clocks to increase. And so I discount the possibility.
 
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Thunder 57

Platinum Member
Aug 19, 2007
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Seems like the mood on various forums is a hope for N3* refresh in 25/26. No idea if that is even realistic if it wasn't planned for all along.

I was one of those speculating for some kind of N3 "Zen 5+", but I really don't think its possible as that decision would've had to made some time ago.
 
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FlameTail

Diamond Member
Dec 15, 2021
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Kepler L2 speculated that the reason for rb delay for 2027 was because desktop Zen6 used LPDDR6, and LPDDR6 LPCAMM modules won't be available until 2027....
if Medusa Ridge indeed uses LPDDR6-10667, it means 228 GB/s of bandwidth on a 192b bus!

That's a huge bandwidth uplift, and could pave the way for 24 core or even 32 core Zen6 desktop parts.

You know there was a rumour of ARL-R with 8P+32E? That supposedly got cancelled because there was not enough memory bandwidth to feed that beast with DDR5.
 

FlameTail

Diamond Member
Dec 15, 2021
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I think M6 would be available by that time and what do you reckon that would score?
~5000.

On average, Apple aims for 10-15% ST increase with each generation.
M1: 2350
M2 : 2650
M3 : 3100
M4 : 3900
M5 :
M6 :
 
Last edited:
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LightningZ71

Golden Member
Mar 10, 2017
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I was one of those speculating for some kind of N3 "Zen 5+", but I really don't think its possible as that decision would've had to made some time ago.
What if, instead of a "refresh" that takes new development resources, it's the Zen5 that was originally intended and designed before being cut back due to falling back to N4P/X?
 
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RnR_au

Platinum Member
Jun 6, 2021
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Kepler L2 speculated that the reason for rb delay for 2027 was because desktop Zen6 used LPDDR6, and LPDDR6 LPCAMM modules won't be available until 2027....
Then AMD may as well go to AM6.

This just smells wrong.
 

techjunkie123

Member
May 1, 2024
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~5000.

On average, Apple aims for 10-15% ST increase with each generation.
M1: 2350
M2 : 2650
M3 : 3100
M4 : 3900
M5 :
M6 :
Unless they manage to get significant IPC improvements the next couple of generations, ~5000 will only be possible at 5.5+ GHz.

Remember IPC improvements were practically zero from M1->M3, only M4 shows a medium IPC increase of ~7%.
 

Thunder 57

Platinum Member
Aug 19, 2007
2,954
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What if, instead of a "refresh" that takes new development resources, it's the Zen5 that was originally intended and designed before being cut back due to falling back to N4P/X?

That's basically what I was thinking. But I don't know how practical it would be given the timeline and resources. And if they did release the "real" Zen 5 on N3*, would that mean they just lanuched Zen 5 - (minus)?
 

branch_suggestion

Senior member
Aug 4, 2023
372
829
96
Zen 6 will still be bigger than Zen5. Moving to N3E/N3P on both the CCD and IOD. Improved memory controller and hopefully newer memory standards like LPCAMM. Not accounting for the minor core upgrades.

I have faith in the Zen team but the biggest issue is the cadence. It should be 16-18 months, over 24 months is crazy talk.
It it is 2027 then N2 for even the client compute die becomes feasible.
N3P/X is still more likely.
 

branch_suggestion

Senior member
Aug 4, 2023
372
829
96
if Medusa Ridge indeed uses LPDDR6-10667, it means 228 GB/s of bandwidth on a 192b bus!

That's a huge bandwidth uplift, and could pave the way for 24 core or even 32 core Zen6 desktop parts.

You know there was a rumour of ARL-R with 8P+32E? That supposedly got cancelled because there was not enough memory bandwidth to feed that beast with DDR5.
Wait for Strix Halo benchmarks first, especially in memory bound floating point apps.
My guess is that will show 16 cores is plenty for that level of bandwidth.
 
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FlameTail

Diamond Member
Dec 15, 2021
3,762
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Unless they manage to get significant IPC improvements the next couple of generations, ~5000 will only be possible at 5.5+ GHz.

Remember IPC improvements were practically zero from M1->M3, only M4 shows a medium IPC increase of ~7%.
Apple M4 (4.4 GHz) already enough IPC, and if you were to overclock it (hypothetically) to 5.5 GHz+, you would approach ~5000 points.

Now I doubt M6 will hit 5.5 GHz. I'd guess if Apple continues on their current trajectory, M6 will run at ~5 GHz, with some single digit IPC gains in M4 -> M5, and M5 -> M6.
 
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Doug S

Platinum Member
Feb 8, 2020
2,708
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~5000.

On average, Apple aims for 10-15% ST increase with each generation.
M1: 2350
M2 : 2650
M3 : 3100
M4 : 3900
M5 :
M6 :

M5 is the multitronic system, with such good AI it is capable of running a starship by itself. So it may have a bigger performance jump that previous generations - and will kill anyone who tries to turn it off (or report unsatisfying benchmark results)
 

poke01

Golden Member
Mar 8, 2022
1,995
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M5 is the multitronic system, with such good AI it is capable of running a starship by itself. So it may have a bigger performance jump that previous generations - and will kill anyone who tries to turn it off (or report unsatisfying benchmark results)
I mean it probably could power a spaceship provided it has enough ram. /s
 

FlameTail

Diamond Member
Dec 15, 2021
3,762
2,208
106
Seems like the mood on various forums is a hope for N3* refresh in 25/26. No idea if that is even realistic if it wasn't planned for all along.
Remarkable how the mood has shifted so seismically.

Why, only a few months ago we were talking about how Zen5's 40% 1T improvement would make it the undisputed leader of ST performance, totally annihilating the competition and put AMD in the lead for years to come!
 
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