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

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RnR_au

Golden Member
Jun 6, 2021
1,718
4,208
106
"AM5+ in 2026"
Why the heck would we be seeing a patch now then?
FYI. The '+' means "AM5 and newer/future platforms, not an actual socket change by AMD."


So there is no AM5+ socket planned, as far as we know currently.
 

Thibsie

Senior member
Apr 25, 2017
752
811
136
My buddy just spent $2k on a gaming rig only to complain his game wasn't better.

Turns out he was 1920x1280 at 60fps because Windows defaulted to that with his HDMI. Does it really matter AMD/Intel when average consumers buy top end stuff only to not know the correct cables and settings matter?
C'mon, HDMI is HDMI, huh ?
xD
 

SK10H

Member
Jun 18, 2015
114
44
101
Some info from RTG
What true or no true. We don't know

People like you keep giving fantasy sources more potential hit. If you know and suspect these are made up, there's nothing to discuss other than inviting others to waste more time on the noises. For the record, I didn't even look at the words in your screenshot.
If only there's a feature where I can easily ignore post that contain RGTNTY and MILDNTY but not the member... Just to save some bandwidth. I misspell them so not even giving them the search engine hit. 😉
 

Fjodor2001

Diamond Member
Feb 6, 2010
3,800
263
126
Apparently one of the requirements by Microsoft for Windows PCs to labeled an "AI PC" is that is should include an NPU. I've also seen performance requirements of 40 TOPS mentioned. Microsoft will be pushing it as a big thing especially on Windows 12 coming soon.

The AMD Zen4 based Hawk Point laptop CPUs already has an NPU, and the Zen5 laptop CPUs will have an even more powerful NPU.

But we'd not heard much about how it will be dealt with on the Zen5 desktop CPUs. So far no dedicated NPU has been mentioned IIRC. AMD has only mentioned that it'll have "Integrated AI and Machine learning optimizations". But are we expecting that to mean a dedicated NPU? Or will they "brute force" similar TOPS performance using some generic instructions such as AVX512? Is that achievable?

Or perhaps not comply with the requirements by Microsoft at all, so the Zen5 DT based PCs will be placed in the "non-AI PC" category in stores? One might have different opinions on the need for an NPU and 40+ TOPS, but it'll probably be a check box feature that is going to determine a lot of people's buying decisions in the near future. They want to be future proof, and make sure their new PC complies with the requirements.

Please let us know what you think.



 

adroc_thurston

Platinum Member
Jul 2, 2023
2,330
3,206
96
Or perhaps not comply with the requirements by Microsoft at all, so the Zen5 DT based PCs will be placed in the "non-AI PC" category in stores?
AI PC meme gimmick is for laptops, includes rebates too.
forget about it elsewhere.
but it'll probably be a check box feature that is going to determine a lot of people's buying decisions in the near future.
no.
it's just MS schizo wank, same as laptop touchscreens ca2012.
 

uzzi38

Platinum Member
Oct 16, 2019
2,650
6,088
146
Some info from RTG
What true or no true. We don't know

Sorry I have to put a little bit of a dampener on things. Now obviously I can't confirm 100% the SPECInt numbers are true (I mean, everyone I've talked to has tried to convince me they are, but like... come on those numbers are crazy, can you blame me?) but even with all the craziness I have to point out that the Genoa numbers are supposedly 400W, the Turin numbers are at 500W. They're not quite as apples-to-apples as the slide makes them seem.

When you factor in IOD power on server and look at just CPU core performance, you're actually really looking at a 1.5x perf boost at ~1.3x the power, around abouts. Still incredibly good for a large core on the same node, but not as crazy as what's flying around sounds like. I really feel like I have to throw a but of water on the fire here.

Again, even assuming the numbers are true
 

Abwx

Lifer
Apr 2, 2011
11,009
3,613
136
Sorry I have to put a little bit of a dampener on things. Now obviously I can't confirm 100% the SPECInt numbers are true (I mean, everyone I've talked to has tried to convince me they are, but like... come on those numbers are crazy, can you blame me?) but even with all the craziness I have to point out that the Genoa numbers are supposedly 400W, the Turin numbers are at 500W. They're not quite as apples-to-apples as the slide makes them seem.

When you factor in IOD power on server and look at just CPU core performance, you're actually really looking at a 1.5x perf boost at ~1.3x the power, around abouts. Still incredibly good for a large core on the same node, but not as crazy as what's flying around sounds like. I really feel like I have to throw a but of water on the fire here.

Again, even assuming the numbers are true
If that s 1.5x the perf at 1.25x the power then it amount to 10% lower perf at same 400W power, that is 1.35x the perf at same power, not an extraodrinary number all things being equal given that it s a server plateform, it would be much more impressive for a DT part.
 

Rigg

Senior member
May 6, 2020
472
976
106
For reference, rough numbers for Zen 4:
7950X Single ~125, Multi ~2200
7900X Single ~120, Multi ~1650

~36% improvement if real. Don't know if that's plausible.
This about the same 36% uplift we got between 3950x and 5950x single thread in this benchmark. Harder to judge multi. 3950x to 5950x was only about 13% in this benchmark. 5950x to 7950x was 46% but the 7950X also has a higher power limit. 7950X3D is 42% faster than 5950X with a similar power limit but the vcache helps a bit in this benchmark. Seems plausible. In that context it doesn't seem all that earth shattering though.

I used https://www.cgdirector.com/cinebench-2024-scores/ for reference.
 

Mahboi

Senior member
Apr 4, 2024
352
594
91
For reference, rough numbers for Zen 4:
7950X Single ~125, Multi ~2200
7900X Single ~120, Multi ~1650

~36% improvement if real. Don't know if that's plausible.
I don't think Kepler & Adroc are lying.
How well will that 40%+ perf translate into apps is a different story, it may be stellar in some, less so in others.
The other, unspoken aspect, is AVX512 support. Zen4 has a trimmed AVX512 support, where they run some kind of dual 256bit design, I forget the details, but it's more of a "can do AVX512" than a "is custom made for AVX512".
The likelihood of AVX512 heavy apps being massively faster, even way beyond 40%, is very high.
 

Timmah!

Golden Member
Jul 24, 2010
1,429
657
136
I don't think Kepler & Adroc are lying.
How well will that 40%+ perf translate into apps is a different story, it may be stellar in some, less so in others.
The other, unspoken aspect, is AVX512 support. Zen4 has a trimmed AVX512 support, where they run some kind of dual 256bit design, I forget the details, but it's more of a "can do AVX512" than a "is custom made for AVX512".
The likelihood of AVX512 heavy apps being massively faster, even way beyond 40%, is very high.
What are these AVX512 heavy apps? Aside of PS3 emulator.
 
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