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

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Mahboi

Senior member
Apr 4, 2024
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What are these AVX512 heavy apps? Except PS3 emulator.
To take an extra REDACTED example:

This is "just" a JSON parser. But it's turbo optimised. Look at that throughput difference on a ghetto AVX 512 implementation. Now imagine the same difference between no AVX 512 and ghettoVX 512, but added on top of it.
From 7.74Go/s to 10.26, that's 32% better. If Zen 5 turns that into 60% better over no AVX 512, then it's an actual monster for a ton of little things.
Again, this is just a freaking JSON parser. The amount of little optimisations can be huge. Maybe now it's not that many apps...but there's no way it won't grow.

Edit:

Jesus H Christ the crypto meme is actually going to return. GAAAAAAAAAAAH
 
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StefanR5R

Elite Member
Dec 10, 2016
5,591
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AMD has only mentioned that it'll have "Integrated AI and Machine learning optimizations". But are we expecting that to mean a dedicated NPU?
Obviously there is not going to be an NPU in Turin. From which almost inevitably follows that there won't be an NPU in Granit Ridge. These optimizations they spoke of consist of AVX-VNNI support, and perhaps similar added or just widened features.

Edit,
What are these AVX512 heavy apps? Aside of PS3 emulator.
Some math stuff but they're all limited by the bandwidth available.
There will be niche cases in which the vector pipelines can be fed out of the level 3 caches. These cases will be power-limited rather than main memory bandwidth limited (but will certainly make better use of the power available than Zen 4).
 
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Mahboi

Senior member
Apr 4, 2024
522
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Obviously there is not going to be an NPU in Turin. From which almost inevitably follows that there won't be an NPU in Granit Ridge. These optimizations they spoke of consist of AVX-VNNI support, and perhaps similar added or just widened features.
I'm sorry but where is that obvious?
Adding an NPU for CPU based AI, which is still in demand (all AI is in demand) is a move that'll get the market's attention.
May be entirely silly and/or useless, but it will get the market's attention.
 

Fjodor2001

Diamond Member
Feb 6, 2010
3,842
305
126
AI PC meme gimmick is for laptops, includes rebates too.
forget about it elsewhere.

no.
it's just MS schizo wank, same as laptop touchscreens ca2012.

If Microsoft says it's a checkbox feature for Windows PCs to have an NPU with 40+ TOPS going forward, it'll be a deal breaker for a lot of regular PC buyers going forward if a PC does not comply with the requirements whether you like it or not.

Anyway, we can argue whether or not it's a good requirement. But there is still the technical aspect as to whether Zen5 DT PCs would be able to achieve the 40 TOPS through other means than a dedicated NPU. E.g. would be is possible to do it using regular CPU instructions such as AVX512? Or some of the other AI related improvements AMD has hinted at when they communicated that Zen5 will have "Integrated AI and Machine learning optimizations", whatever that means?
 
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adroc_thurston

Platinum Member
Jul 2, 2023
2,501
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If Microsoft says it's a checkbox feature for Windows PCs to have an NPU with 40+ TOPS going forward, it'll be a deal breaker for a lot of regular PC buyers going forward if a PC does not comply with the requirements whether you like it or not.
no it's not rofl.
It's just Nutella being deluded and desperate enough to not miss another big thing (MS skipped online advertisement and phones in case you forgot).
But there is still the technical aspect as to whether Zen5 DT PCs would be able to achieve the 40 TOPS through other means than a dedicated NPU. E.g. would be is possible to do it using regular CPU instructions such as AVX512? Or some of the other AI related improvements AMD has hinted at when they communicated that Zen5 will have "Integrated AI and Machine learning optimizations", whatever that means?
no one cares bro.
 
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Timmah!

Golden Member
Jul 24, 2010
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If Microsoft says it's a checkbox feature for Windows PCs to have an NPU with 40+ TOPS going forward, it'll be a deal breaker for a lot of regular PC buyers going forward if a PC does not comply with the requirements whether you like it or not.

Anyway, we can argue whether or not it's a good requirement. But there is still the technical aspect as to whether Zen5 DT PCs would be able to achieve the 40 TOPS through other means than a dedicated NPU. E.g. would be is possible to do it using regular CPU instructions such as AVX512? Or some of the other AI related improvements AMD has hinted at when they communicated that Zen5 will have "Integrated AI and Machine learning optimizations", whatever that means?
Can you use the GPU for that stuff instead, if your CPU does not have it?
How much TOPS does 4090 have?
 

Mahboi

Senior member
Apr 4, 2024
522
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no it's not rofl.
It's just Nutella being deluded and desperate enough to not miss another big thing (MS skipped online advertisement and phones in case you forgot).

no one cares bro.
Meta, Google, MS, enough Chinese companies that the U.S Govt blocked China from importing, AMD, Nvidia, OpenAI, Tesla, and possibly another 20 corpos without enough money to actually pour into it are into AI.

It's not just some grand desperation. It may be delusional to think that it'll give them what they want, but it's not desperation.
Also FYI the entire stock exchange has been losing monies for some time and only the 7 top stocks have been gaining. They're all AI stocks. Every single one of them runs on AI Hype, so there may be deeper problems than just the viability of AI on the line here.
 

Mahboi

Senior member
Apr 4, 2024
522
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Can you use the GPU for that stuff instead, if your CPU does not have it?
How much TOPS does 4090 have?
Yes but I suspect MS doesn't want to support a GPU vendor (which would 100% mean Nvidia alone). They want something that is vendor agnostic, which doesn't exist in the GPU world right now, so its x64 all the way...inb4 the Arm meme.
 
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Timmah!

Golden Member
Jul 24, 2010
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Yes but I suspect MS doesn't want to support a GPU vendor (which would 100% mean Nvidia alone). They want something that is vendor agnostic, which doesn't exist in the GPU world right now, so its x64 all the way...inb4 the Arm meme.
Thanks. I just did not know if its possible to offload whatever that NPU is supposed to be computing to the GPU, or the hardware for it has to be part of the CPU. I mean, whether asking this to be ran on GPU would not be akin to running windows itself on GPU.
 

Saylick

Diamond Member
Sep 10, 2012
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Looks like we get a 40% IPC gain at the cost of 25% more power, roughly. Not bad considering anything less than a 1:1 ratio is the ultimate goal, anyways. Considering that DT Zen 4 sees a lot of diminishing returns at the upper end of the frequency curve, I assume that 170W on the AM5 platform will actually let Zen 5 stretch its legs. In other words, while you didn't see much benefit going from 125W to 170W for the 7950X, Zen 5 should be 40% faster than Zen 4 at ~156W or so and you can then tap into the rest of the power overhead to get to 6 GHz.
 

Fjodor2001

Diamond Member
Feb 6, 2010
3,842
305
126
AI PC meme gimmick is for laptops, includes rebates too.
forget about it elsewhere.

no.
it's just MS schizo wank, same as laptop touchscreens ca2012.

No. You're out of the loop. Check box features is what sells. Everyone is aware of the AI hype these days. Even your grandma. Whether you like it or not.

If a PC doesn't have the "AI PC" sticker, regular Joe will skip it.
 
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Mahboi

Senior member
Apr 4, 2024
522
836
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No. You're out of the loop. Check box features is what sells. Everyone is aware of the AI hype these days. Even your grandma. Whether you like it or not.

If a PC doesn't have the "AI PC" sticker, regular Joe will skip it.
I'm honestly not sure. AI is mostly a tech meme for now...and it'll have severe backlash since MS is MS. They are a fundamentally awful corporation, many people distrust them.
You can easily imagine what'll happen when a generally distrusted megacorp starts shipping "Microsoft AI" in it. Lord knows there will be controversies.

Regular Joe may just want his PC to allow him to internet and game and talk to friends. I'm not certain it'll be anything MS hopes it to be. But you don't argue hypes, you just ride them or get swallowed by them.
 
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Fjodor2001

Diamond Member
Feb 6, 2010
3,842
305
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Can you use the GPU for that stuff instead, if your CPU does not have it?
A lot of PCs are sold without dedicated GPU. E.g. a lot of office PCs. So companies will want the 40 TOPS though other means, to be "AI PC" compliant.

I can tell you that AI is on a lot of companies' strategy plan today. Nobody want to be left in the dust. Buying non-AI compliant PCs is not a risk they are willing to take.

How much TOPS does 4090 have?
Sure for gamers, that'll work. But regular office PCs do not have 4090. Or GB200 for that matter. They'll instead be relying on whatever the CPU provides (iGPU, NPU, AI acceleration CPU instructions, ...).
 

Tigerick

Senior member
Apr 1, 2022
679
559
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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?)
Yeah, you have come to common sense. Performance numbers are not IPC uplifts.

Just like Zen 4s CineBench performance numbers are 40% better than Zen3, yet the average IPC uplifts are 13%.

And adroc already realized his mistake and he won't talk about 40% IPC and BS about $999/$549 anymore...
 
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Fjodor2001

Diamond Member
Feb 6, 2010
3,842
305
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Poor Granite Ridge desktops. They won't meet or exceed the requirement for 1 or more copilot keys on the keyboard. It's doomed.
Not doomed. But it'll affect sales negatively in a substantial way, unless AMD has some alternative way of achieving 40 TOPS on Zen5 DT than via a dedicated NPU.

AMD themselves have hinted at that Zen5 will have "Integrated AI and Machine learning optimizations". So obviously they too know it's important. Possibly it means they have a solution for it.
 
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adroc_thurston

Platinum Member
Jul 2, 2023
2,501
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And adroc already realized his mistake and he won't talk about 40% IPC and BS about $999/$549 anymore...
rent free
No. You're out of the loop. Check box features is what sells. Everyone is aware of the AI hype these days. Even your grandma. Whether you like it or not.

If a PC doesn't have the "AI PC" sticker, regular Joe will skip it.
no one cares.
Just like no one cared about touchscreen laptops.
 

uzzi38

Platinum Member
Oct 16, 2019
2,668
6,194
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Not doomed. But it'll affect sales negatively in a substantial way, unless AMD has some alternative way of achieving 40 TOPS on Zen5 DT than via a dedicated NPU.

AMD themselves have hinted at that Zen5 will have "Integrated AI and Machine learning optimizations". So obviously they too know it's important. Possibly it means they have a solution for it.
Seeing as AMD mostly play in the DIY market on desktop... A dGPU? Pretty much any modern dGPU meets the requirement.
 
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