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

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Mahboi

Senior member
Apr 4, 2024
741
1,316
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Sort of unrelated to the thread but I did pilfer some of the best frames from the Zen 5 Hype Train video, and I'm thinking they'll see a lot of reuse...:

Gamer Hitler and his True Gaming Experience

THAT website

Oh yes Marty, yes they can disappoint us!
 

FlameTail

Diamond Member
Dec 15, 2021
3,151
1,800
106
But if all the numbers prove accurate, while my AMD fanboi self is heavily disappointed, it is actually an incredibly glorious situation for people. I was genuinely afraid that we'd see Inverted Skylake for 5 years, instead, it seems we've reached a near perfect balance with AMD having high perf server, high perf mobile, and gaming, while Intel has low power mobility and multicore perf.
The competition may prove extreme, and it's all the better for the whole of us. It may be the absolute best result for consumers.
Throw arm to the mix as well.

The Core Wars have begun.
 
Reactions: Mahboi

B-Riz

Golden Member
Feb 15, 2011
1,530
676
136
I disagree. I think it's more serious than that. I tried yapping my thoughts on it for like 30 mins over 2 days but couldn't get past just lining up all the oddities with this result.
I don't think it's "just mid", there's a lot of little things that I feel don't make much sense.
Not the least of which is the fact that pricing isn't out and that Lion Cove is just a nudge below, giving maybe 5% more over the RPL vs Zen 4 situation. It's like AMD aimed juuuuuuust slightly above their Z4/RPL situation.
Skymont being a glorious success on paper is great, but I'll be waiting for actual benchmarks on it. That "38% better on workloads" thing isn't reassuring.
More than ever:
But if all the numbers prove accurate, while my AMD fanboi self is heavily disappointed, it is actually an incredibly glorious situation for people. I was genuinely afraid that we'd see Inverted Skylake for 5 years, instead, it seems we've reached a near perfect balance with AMD having high perf server, high perf mobile, and gaming, while Intel has low power mobility and multicore perf.
The competition may prove extreme, and it's all the better for the whole of us. It may be the absolute best result for consumers.

We have been spoiled for the past few years; some newer members seem to not know how meh and frustrating everything was when AMD fumbled with FX series and Intel milked us for every last penny in 4c8t land. All that right after the heady days of Athlon X64 and Core2Duo.
 

CouncilorIrissa

Senior member
Jul 28, 2023
297
1,040
96
I disagree. I think it's more serious than that. I tried yapping my thoughts on it for like 30 mins over 2 days but couldn't get past just lining up all the oddities with this result.
I don't think it's "just mid", there's a lot of little things that I feel don't make much sense.
Not the least of which is the fact that pricing isn't out and that Lion Cove is just a nudge below, giving maybe 5% more over the RPL vs Zen 4 situation. It's like AMD aimed juuuuuuust slightly above their Z4/RPL situation.
Skymont being a glorious success on paper is great, but I'll be waiting for actual benchmarks on it. That "38% better on workloads" thing isn't reassuring.
I agree on the oddities part. The slides were all over the place. The benchmark selection was downright weird.

If the IPC increase is so mid and if there is no clock speed increase, then AMD must know that the ARL-S is a serious threat given two full node jumps.
Yet they drop the TDP for all but the top-end end SKU? What? One would think that they'd attempt to extract every last digit of performance from what they have, yet they don't seem to care.

I'm very interested in third-party benchmarks.
 

FlameTail

Diamond Member
Dec 15, 2021
3,151
1,800
106

Zen5 is still behind Firestorm level of IPC. I have done the the math, based on estimated Strix Point numbers.

FYI, Firestorm is the codename of the P-core in the Apple M1. Adroc was saying Zen5 would have Firestorm class IPC, but that was based on his +40% performance number. Of course, that didn't pan out, so we have this.

PS: I haven't listed Firstorm's in the above chart, but it should be pretty similar to X Elite (which is in the rightmost column).
 
Jul 27, 2020
17,850
11,642
116
how meh and frustrating everything was when AMD fumbled with FX series and Intel milked us for every last penny in 4c8t land. All that right after the heady days of Athlon X64 and Core2Duo.
My frustration stemmed from the fact that I wanted to re-use my 32GB DDR3-1600 RAM with Core 6th and 7th gen mobos that supported DDR3 but at the same time, Intel was like, the IMC of the CPU may get damaged so that kept me from wasting money and I stuck with my Sandy/Ivy Bridge/Haswell CPUs in that period. If only AMD had a process advantage with Piledriver in that era, with roughly similar power use and heat output to Intel CPUs, I would've jumped on it coz multicore was always going to be the future.
 
Reactions: B-Riz
Jul 27, 2020
17,850
11,642
116
I agree on the oddities part. The slides were all over the place. The benchmark selection was downright weird.
Lisa fires off an email to "AMD Performance Labs" to prepare the benchmark slides with instructions to consult with AMD marketing for the performance figures.

Lone guy sleeping on the job in the Labs is woken up by the email notification sound and goes into panic mode and starts benchmarking like crazy. When he's done after a sleepless night in the labs, he calls up marketing and tells them that he can't get his IPC geomean to the targeted 15%. One of the marketing guys suggests that a certain master of numbers guy owes them an old favor so let's ask him. They call him and he mulls it over some nice spicy food and gets back to them, "Run the GB5 AES benchmark. It should boost up your geomean nicely". The AMD performance champion runs the suggested benchmark and gets the best uplift of all the ST benchmarks he's done. Everyone is over the moon and the 16% IPC geomean is cheered all over since it beats the 15% projected uplift in the leaked slides.

Raja Koduri
 

Mopetar

Diamond Member
Jan 31, 2011
8,004
6,446
136
View attachment 100492
Zen5 is still behind Firestorm level of IPC. I have done the the math, based on estimated Strix Point numbers.

At least part of Apple's impressive IPC is that they have lower access times (in cycles) to their cache. If they were to ramp up their clock speeds to the same extent that AMD/Intel use, they'd have to increase the latency on their caches. Performance would possibly increase, but IPC would naturally go down.

If AMD or Intel dropped clock speeds low enough, they could eventually reach 1 cycle hit times for their L1 caches, but of course the overall performance would suffer greatly. Their IPC would improve a lot though.

Chasing IPC in isolation is as foolish as thinking that faster clocks are the answer.
 
Jul 27, 2020
17,850
11,642
116
Yet they drop the TDP for all but the top-end end SKU? What? One would think that they'd attempt to extract every last digit of performance from what they have, yet they don't seem to care.
I have a suspicion that they have Ryzen Master telemetry data overwhelmingly suggesting that most Ryzen users are turning on the ECO mode to get their temps down coz most people don't want their CPU hitting 95C so maybe they are doing a favor to the majority? If this is true, Ryzen Master may get an option to run these "ECO" CPUs in performance mode but AMD doesn't have to guarantee anything to such users because that's not the OOB experience they are selling in the first place.
 

AMDK11

Senior member
Jul 15, 2019
341
235
116
I disagree. I think it's more serious than that. I tried yapping my thoughts on it for like 30 mins over 2 days but couldn't get past just lining up all the oddities with this result.
I don't think it's "just mid", there's a lot of little things that I feel don't make much sense.
Not the least of which is the fact that pricing isn't out and that Lion Cove is just a nudge below, giving maybe 5% more over the RPL vs Zen 4 situation. It's like AMD aimed juuuuuuust slightly above their Z4/RPL situation.
Skymont being a glorious success on paper is great, but I'll be waiting for actual benchmarks on it. That "38% better on workloads" thing isn't reassuring.
More than ever:
But if all the numbers prove accurate, while my AMD fanboi self is heavily disappointed, it is actually an incredibly glorious situation for people. I was genuinely afraid that we'd see Inverted Skylake for 5 years, instead, it seems we've reached a near perfect balance with AMD having high perf server, high perf mobile, and gaming, while Intel has low power mobility and multicore perf.
The competition may prove extreme, and it's all the better for the whole of us. It may be the absolute best result for consumers.
What do you mean? AMD has a problem with a wider core?

I understand that the IPC curve is strange in terms of the number and selection of tests, especially the last subtest AES (AVX512). There are few details about the architecture of Zen5, which is the opposite of what AMD showed regarding previous generations of Zen.



What do you mean? AMD is hiding something? Is there something behind it?
 

CouncilorIrissa

Senior member
Jul 28, 2023
297
1,040
96
I have a suspicion that they have Ryzen Master telemetry data overwhelmingly suggesting that most Ryzen users are turning on the ECO mode to get their temps down coz most people don't want their CPU hitting 95C so maybe they are doing a favor to the majority? If this is true, Ryzen Master may get an option to run these "ECO" CPUs in performance mode but AMD doesn't have to guarantee anything to such users because that's not the OOB experience they are selling in the first place.
Most Ryzen users don't know that ECO mode exists in the first place.
 
Reactions: Racan

CouncilorIrissa

Senior member
Jul 28, 2023
297
1,040
96
Then this could mean that AMD determined that they don't want to assure people again that 95C is completely safe. This "issue" got headlines at Zen 4 launch.
Most people don't read headlines either.

Those not technically inclined usually get advice from their more inclined friends, and those by and large only look at FPS bars in reviews. Those looking at anything past that represent a tiny minority.
 

Mahboi

Senior member
Apr 4, 2024
741
1,316
96
What do you mean? AMD has a problem with a wider core?
Completely possible, but that doesn't explain the flip flopping with power draw (shipping manifest clearly noted the 9600X as 105W not 65), or the strangely absent benchmarks. Like decompression or compression have been a staple of Zen since Zen 2 at least, and it's not there. There's just a few too many oddities or missing points in what they've shown.
But it could be that the core is not that good too. Would also explain the strange 2 whole months before it comes out, they could be trying to microcode something out. We'll see when the 3rd party benches are out.
I understand that the IPC curve is strange in terms of the number and selection of tests, especially the last subtest AES (AVX512). There are few details about the architecture of Zen5, which is the opposite of what AMD showed regarding previous generations of Zen.
What do you mean? AMD is hiding something?
It's possible.
I wouldn't expect a 20% uplift now, that'd be insane. But that there will be some surprisingly good numbers left and right that we'll see after the CPUs release is an option.
 

coercitiv

Diamond Member
Jan 24, 2014
6,387
12,812
136
Completely possible, but that doesn't explain the flip flopping with power draw (shipping manifest clearly noted the 9600X as 105W not 65)
Dropping the power can only be seen as a good thing. Like I've already said in the other thread, it's one of the few things we can use to gauge gains that are independent of benchmarks and testing conditions. If some Zen 5 SKUs drop power by about 40-50W when compared with Zen 4 counterparts, then they have to do so while offering at least the same level of performance. (they would have to offer more, but you get the idea) This means that Zen 5 will be significantly more efficient than Zen 4, which falls in line with the performance figures we've seen for Strix (like 40% higher perf with 50% more cores, this is only possible if core power is lower by about 35%)

The really weird and concerning part is the benchmark selection they presented us with, especially considering they will be launching these CPUs relatively soon and before the competition (so there's no point in hiding things from them at this stage). Even now, we have no way of evaluating 1T performance of Zen 5. It makes no sense, the opsec part is over.
 

lightmanek

Senior member
Feb 19, 2017
401
810
136
Hm, so it's 26% faster. Nothing too special. We know about 16% average ipc, so this is just a bench in the upper region. Why is everyone acting as if it was super high?!

It's so easy to hide CPU performance behind GPU bottleneck if you want to. I would like 720p high and max. settings results from a range of games to draw conclusion, but I have a feeling it will be decently faster than R7xxx X3D chips.
If there is a demo of this game to bench, I can run it on a Ryzen 7800X3D and Radeon 7900XTX, best way to extrapolate performance gains.
 

AMDK11

Senior member
Jul 15, 2019
341
235
116
The really weird and concerning part is the benchmark selection they presented us with, especially considering they will be launching these CPUs relatively soon and before the competition (so there's no point in hiding things from them at this stage). Even now, we have no way of evaluating 1T performance of Zen 5. It makes no sense, the opsec part is over.
Are decreases or very slight increases in IPC likely for significant tests?
 
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