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

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Timmah!

Golden Member
Jul 24, 2010
1,436
673
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I'm all for Zen 5 being great, but honestly I'm a bit confused about the recent twitter hypetrain (not to mention adroc).
It better be something like that, or like a 40% IPC increase, otherwise the hype-train just seems .... stupid. Zen 4 also ended up roughly 30% faster and definitely didn't make older stuff useless (e.g. 5800 X3D). Yeah, i know it was mostly clocks, but the average Joe doesn't care.
Same general feelings here. This "Plebs have not even the slightest idea on how fast the thing really is" sounds like utter BS. Even if its the more than respectable 40 percent speed increase would turn out to be true, it just means that 95 percent of the time you would not see difference, and the rest of cases it would still be not good enough.
Tell me how fast the thing is, when it finishes tasks, that takes Zen 4 whole hour, in mere seconds. If it cant, then there is nothing special about it, that we havent seen before.
 

Kaffeekenan

Member
Jan 6, 2022
45
73
61
Same general feelings here. This "Plebs have not even the slightest idea on how fast the thing really is" sounds like utter BS. Even if its the more than respectable 40 percent speed increase would turn out to be true, it just means that 95 percent of the time you would not see difference, and the rest of cases it would still be not good enough.
Tell me how fast the thing is, when it finishes tasks, that takes Zen 4 whole hour, in mere seconds. If it cant, then there is nothing special about it, that we havent seen before.

Wow, that has to be one of the stupidest takes I have ever seen. So you basically want Zen 5 to be 10 times faster or so, otherwise it's garbage? Ok...
 

Thunder 57

Platinum Member
Aug 19, 2007
2,753
3,975
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I guess you're right in that Intel HAS to market some kind of advantage of ARL over RPL, otherwise what's the point?

Just sad that they could only muster a few % points improvement, but to be honest, I'm totally cool with AMD gaining more market share for a few generations only because I know that in the grand scheme of things, the Intel-AMD market share needle is still very far from 50-50, which is where I believe it needs to be for maximum consumer benefit from a competition point of view.

But ARL will be the first gaming CPU with AI! That's been their push so far. Color me unimpressed.
 

Timmah!

Golden Member
Jul 24, 2010
1,436
673
136
Wow, that has to be one of the stupidest takes I have ever seen. So you basically want Zen 5 to be 10 times faster or so, otherwise it's garbage? Ok...
Or maybe what i am saying, is that hyping Zen5 as the best thing since sliced bread, as if 30 percent more perf for another 700 bucks 2 years later is anything but bare minimum, is kind of daft.
But sure, you do you, and keep twisting my words and pretend i said its garbage.
 

eek2121

Platinum Member
Aug 2, 2005
2,989
4,130
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Zen 3 was AMD’s “Conroe” IMO.

Shoot, so were certain Athlon chips. Pentium 4 was running at close to twice the clocks, yet AMD was still winning…

…until the Core series dropped.
But ARL will be the first gaming CPU with AI! That's been their push so far. Color me unimpressed.
Doesn’t that honor technically belong to AMD? Hawk point has “AI” and you could definitely consider that to be a gaming CPU. Zen 5 will also have it and launches before Arrow Lake. (unless something has changed — I haven’t had much time to stay on top of things)

I will actually be glad when consoles get an NPU. It will encourage game developers to use it. I am a PC gamer, but you know we almost always get the shaft when it comes to pushing the limits of tech.

I would also like to see said AI functions used to make game AI smarter, particularly in RTS games. (too bad the genre is on life support)
 
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Timorous

Golden Member
Oct 27, 2008
1,708
3,052
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Or maybe what i am saying, is that hyping Zen5 as the best thing since sliced bread, as if 30 percent more perf for another 700 bucks 2 years later is anything but bare minimum, is kind of daft.
But sure, you do you, and keep twisting my words and pretend i said its garbage.

If intel were doing 30% improvement every 2 years from Sandy onwards then Zen would not even exist. To call it bare minimum is laughable.

I don't recall such sustained performance progress since OG Athlon / P3 through to Sandy.
 

Kepler_L2

Senior member
Sep 6, 2020
425
1,732
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I'm all for Zen 5 being great, but honestly I'm a bit confused about the recent twitter hypetrain (not to mention adroc).

How exactly is it going to "instantly make everything older obsolete" or be "almost a Conroe level jump" ?

Let's look at what we know:
  • AFAIK Most of the hypers tend to agree that the leaked architecture slides from AMD are correct. Yet seem to think the actual gains are bigger than the 15% mentioned (some say 20% some ~30-35%).
  • Those changes essentially make it a bit wider and better executed Golden Cove. Now I know AMD has managed to extract way more out of a similar-width CPU than Intel, but nothing from that leaks is anywhere near a "Conroe level" upgrade:
    • There are also no packaging, uncore or major I/O changes. The same I/O die probably limited to the same bandwidth /latency numbers as Zen 4.
    • The FPU part looks beefed up, but that has very little relevance to the general user, outside of benchmarks.
  • And there will be a ~200 Mhz frequency drop.

So what is that "secret Conroe sauce" that causes people to hype it endlessly (provided there is any)?

If I had to bet, I'd wager it's some sort of architectural change not yet listed that will disproportionately affect some workflows:
  • A godly new branch predictor?
  • A radically different way to built the ROB buffer? That would allow a way bigger OoO windows in some scenarios (there have been some papers on that).

It better be something like that, or like a 40% IPC increase, otherwise the hype-train just seems .... stupid. Zen 4 also ended up roughly 30% faster and definitely didn't make older stuff useless (e.g. 5800 X3D). Yeah, i know it was mostly clocks, but the average Joe doesn't care.
It's not that complicated. Zen was designed to be a very balanced uarch, as it replaced both the "HPC" Bulldozer line of cores and "Low power" Cat cores. So they were very careful with any power and area increases, as going ham (like Intel) could hurt markets like Cloud and low-end Notebooks.

With Zen5 they now have the Dense/Compact cores that can serve markets that need max core density, low cost and low power cores. So the Zen5 design team was allowed to make a more performance focused core. As a result, the performance increase is bigger than usual.

IOW, Zen1 to Zen4 were "Medium" cores. Zen5 is AMD's first "Big" core in well over a decade.
 

adroc_thurston

Platinum Member
Jul 2, 2023
2,818
4,147
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If I had to bet, I'd wager it's some sort of architectural change not yet listed that will disproportionately affect some workflows:
  • A godly new branch predictor?
  • A radically different way to built the ROB buffer? That would allow a way bigger OoO windows in some scenarios (there have been some papers on that).
See, you're not that dumb.
Major front-end innovation + bigger core ???? good stuff.
 

Timmah!

Golden Member
Jul 24, 2010
1,436
673
136
If intel were doing 30% improvement every 2 years from Sandy onwards then Zen would not even exist. To call it bare minimum is laughable.

I don't recall such sustained performance progress since OG Athlon / P3 through to Sandy.
Whataboutism. Intel got away with 5 percent perf increases between generations once, so now even 10 percent by AMD is to be cherished and approached as godsend. How about no.
Rest assured i did not buy any of those Intel CPUs back then. I actually may buy Zen 5 now, but i definitely dont need people to tell me how i dont have a clue how fast its gonna be.
All this is, is needless hype, thats doing AMD more disservice than it helps.
 

moinmoin

Diamond Member
Jun 1, 2017
4,989
7,758
136
It's never supposed to.
Oh come on now.

Edit:
AMD before the launch of RDNA3:
AMD says RDNA 3 is projected to provide more than a 50% uplift in performance per watt.


AMD after the RDNA3 launch:
Experience up to 50% greater performance per watt with AMD RDNA™ 3


The continued pretense that nothing changed only makes it worse.
 
Last edited:

blackangus

Member
Aug 5, 2022
84
103
66
See, you're not that dumb.
Major front-end innovation + bigger core ???? good stuff.
This isnt really called for, simply confirming he was on the right track would have been a nice way to respond.
Your a smart and (apparently) well informed guy, no need to talk down to the less informed who are most people!
Be better than that, it makes the world a better place.
 

StefanR5R

Elite Member
Dec 10, 2016
5,633
8,107
136
About whether or not to look forward, or being hyped even:
I expect the performance-per-cost-of-ownership gains to be notably lower than the absolute performance gains. (I am going by how perf/$ developed before vs. after circa Zen 2, and by what has been mentioned about Zen 5's supposed positioning in the market earlier in this thread.) I for one belong to those for whom per-core or per-socket performance is of secondary interest at best, while performance/$ (purchase and operation) does interest me quite a bit.
 

adroc_thurston

Platinum Member
Jul 2, 2023
2,818
4,147
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Oh come on now.
Yeah I know.
But internally it was very not rosy.
This isnt really called for, simply confirming he was on the right track would have been a nice way to respond.
Your a smart and (apparently) well informed guy, no need to talk down to the less informed who are most people!
Be better than that, it makes the world a better place.
No, it's appropriate, most terminally online skeptics™ have no idea what they're talking about.
This one knows enough to almost spell out 1:1 why it's good but still came to the wrong conclusion.
I for one belong to those for whom per-core or per-socket performance is of secondary interest at best, while performance/$ (purchase and operation) does interest me quite a bit.
It's still a decent perf/$ bump, particularly for anything 1t-sensitive.
 
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