Discussion Intel Meteor, Arrow, Lunar & Panther Lakes Discussion Threads

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Tigerick

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As Hot Chips 34 starting this week, Intel will unveil technical information of upcoming Meteor Lake (MTL) and Arrow Lake (ARL), new generation platform after Raptor Lake. Both MTL and ARL represent new direction which Intel will move to multiple chiplets and combine as one SoC platform.

MTL also represents new compute tile that based on Intel 4 process which is based on EUV lithography, a first from Intel. Intel expects to ship MTL mobile SoC in 2023.

ARL will come after MTL so Intel should be shipping it in 2024, that is what Intel roadmap is telling us. ARL compute tile will be manufactured by Intel 20A process, a first from Intel to use GAA transistors called RibbonFET.



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Intel Core Ultra 100 - Meteor Lake

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As mentioned by Tomshardware, TSMC will manufacture the I/O, SoC, and GPU tiles. That means Intel will manufacture only the CPU and Foveros tiles. (Notably, Intel calls the I/O tile an 'I/O Expander,' hence the IOE moniker.)



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MoistOintment

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I don't think it's possible to draw any conclusions from the 285K Passmark MT benchmark because we don't know the power limits.

Could've been testing at 65W, 125W, the 177W baseline profile, or at the full PL1 = PL2 = 250W performance profile and is a serious regression.

We simply don't know because none of these power limits would've impact the ST results.
 

OneEng2

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Sep 19, 2022
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Where do you see 14700K equaling 9950X in ST perf? Im seeing 9950X ST in the charts as 6% faster.



Here you go. Geekbench 6 runs of ES samples are in line with 9950X in MT, and slightly better than 14900K.

View attachment 108788
Geekbench does not scale well with higher core and thread counts. I'll hold out for some better benchmarks to see how things shake out. Additionally, it doesn't make sense that a 8p core and 16e (24 threads) cores would best 16 Zen 5 full cores with SMT (32 threads) in highly threaded applications.

So for the sake of argument, lets say that the single threaded performance of Arrow Lake is 5% higher than Zen 5 (as suggested earlier and using the 11% number of Arrow lake over 14700K). Zen 5 is still going to gain an additional 25% in threaded apps for its SMT making EACH Zen 5 core = 1.2 Arrow Lake P Cores.

For the skymont cores, things look even worse. Each full Zen 5 is more like 2 skymont cores.

So for the 8 P cores, Zen 5 is going to come up 20% faster in MT. For the 16 pcores, the remaining 8 Zen 5 full cores balances this out.

If you look just at the MT benchmarks prior to Arrow Lake they looked like this:

The 14900K still had SMT in 8 of its cores as well, but given that Intel only appears to get 10-15% additional MT performance from their SMT implementation, and the crestmont cores are not a match for skymont (but not that far off either), I don't see how anyone would expect Arrow Lake to best 9950x.

Maybe I am missing something here?
Why would it be slower than Raptorlake? The 16 E cores were roughly equal to 8 P cores in MT, and that one is getting boosted by 30%, while the other half is losing maybe 10%. It's a net gain.
See my math and link above. Arrow Lake does not have SMT, so the 8 Lion Cove cores will not be ahead of a full Zen 5 core, they will be behind in MT.

I think we might just have to wait for the complete suite of MT benchmarks like shown on Tom's link above for Arrow Lake to resolve this discussion.

I am still betting Arrow Lake gets bested by AMD's X3D release in gaming, and gets beat by even normal Zen 5 in MT. If I am correct on this, then Intel may have made a poor design choice as they will be at a disadvantage for another design cycle in the data center. Note, no matter what the outcome of this particular discussion, Intel will have at least provided a much more competitive data center part than the pitiful display they have had going on for the past few years. They are at least competitive, and at best, a bit ahead which is WAY better than where they were.

They have definitely made a winner in the laptop thin and light department with LNL. I am not as sure about the desktop replacement or normal laptop market parts though. We will see.
 

Det0x

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Sep 11, 2014
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Thanks but I don't see the CB scores corresponding to these screenshots?
What do you mean with you cant see CB scores corresponding to screenshot?
The numbers are there..

Static 5700mhz ST
1728274336239.png

Static 5400mhz MT
1728274351542.png

Ran first without hwinfo open to get a "clean run" -> then opened hwinfo and started a new cinebench ST/MT run --> reset timers in hwinfo while running, so you could get the system stats
 
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DavidC1

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For the skymont cores, things look even worse. Each full Zen 5 is more like 2 skymont cores.
Which is a contradiction of your own statement:
"A Single full Zen 5 core will perform more like 1.5 (or more) skymont cores in a multi-threaded application."
and the crestmont cores are not a match for skymont (but not that far off either), I don't see how anyone would expect Arrow Lake to best 9950x.
You mean based on Lunarlake data with SRAM that's pretty much the speed of system memory acting as L3 cache for the Skymont cluster?
 
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naukkis

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I don't think it's possible to draw any conclusions from the 285K Passmark MT benchmark because we don't know the power limits.

Could've been testing at 65W, 125W, the 177W baseline profile, or at the full PL1 = PL2 = 250W performance profile and is a serious regression.

We simply don't know because none of these power limits would've impact the ST results.

If passmark scaling is pretty linear only 8 Lion Coves @ full MT core boost @5.4GHz gives nearly 40000 points. 16 Skymont cores should also do at least 40K with their full 4.6GHz boost so unlimited Arrowlake should do about 80K or even more.
 
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511

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I wonder why Intel won't do 3D vcache they have the tech now with Intel 3T and they are using it in Clearwater Forest
 

511

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If passmark scaling is pretty linear only 8 Lion Coves @ full MT core boost @5.4GHz gives nearly 40000 points. 16 Skymont cores should also do at least 40K with their full 4.6GHz boost so unlimited Arrowlake should do about 80K or even more.
Even non linear should be around 65-70K
 

cannedlake240

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Jul 4, 2024
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I wonder why Intel won't do 3D vcache they have the tech now with Intel 3T and they are using it in Clearwater Forest
NVL apparently was going to get Vcache but at Intel it's seen as extra and could get cancelled any moment. Maybe it's cancelled already. Keep in mind that for AMD Vcache was for both EPYC and desktop and they weren't experiencing a massive crisis while bringing it to market. Intel however has to develop an entirely different Vcache chip for desktop only, since Xeon tiles have nothing to do with desktop chiplets
 
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Hulk

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What do you mean with you cant see CB scores corresponding to screenshot?
The numbers are there..

Static 5700mhz ST
View attachment 108814

Static 5400mhz MT
View attachment 108815

Ran first without hwinfo open to get a "clean run" -> then opened hwinfo and started a new cinebench ST/MT run --> reset timers in hwinfo while running, so you could get the system stats
My fault, sorry, I was looking for the scores in the top left thinking you ran once without HWinfo and they would be there.

Why is your MT score so high? All of the reviews I've seen show about 40-41,000 for CB R23 MT? Anandtech, PCmag, Techreport, etc...
How come their scores are so low? I see Tom's got a little over 43k with PBO.

Also, thanks for doing this!
 
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Det0x

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Why is your MT score so high? All of the reviews I've seen show about 40-41,000 for CB R23 MT? Anandtech, PCmag, Techreport, etc...
How come their scores are so low? I see Tom's got a little over 43k with PBO.
I'm showing static clocks @ 5400mhz (at 250w)

What you see in reviews are autoboosting at 200w (stock PPT limit for the 9950X) --> real clockspeed @ stock is only ~4800mhz in Cinebench R23
And like i have been saying from the start, vanilla Z5 stock V/F curve is pretty bad as it leaves alot on the table

Even leaks are showing the 9950X3D getting higher MT score with same PPT limit as 9950X ((even to a larger degreee then what we saw with Zen4)and now the X3D models scale all the way up the power curve)
 
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tsamolotoff

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May 19, 2019
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I wonder why Intel won't do 3D vcache they have the tech now with Intel 3T and they are using it in Clearwater Forest
Probably it's harder to implement with Intel's wildly different cache hierarchy and architecture, there is no somewhat less sophisticated victim cache that can be extended with less pain as compared to the inclusive intel smart(tm) cache
How come their scores are so low? I see Tom's got a little over 43k with PBO.
Built in boost mechanisms leave a lot of margin in terms of voltage, for example, my 5900x could do 4800 mhz at 1.269v in basically any (non linpack) workload, while PBO was running CPU at something like 4.5 ghz at 1.35v. Also, there is inevitable some form of clock stretching with boost algos, in many tests on this same cpu pbo scored the same in ST tests as static oc that was 150 mhz lower.
 

OneEng2

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Sep 19, 2022
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3 days to launch for ARL let's see offical numbers and than the benchmark on 24
That is where my head is as well.
Which is a contradiction of your own statement:
"A Single full Zen 5 core will perform more like 1.5 (or more) skymont cores in a multi-threaded application."

You mean based on Lunarlake data with SRAM that's pretty much the speed of system memory acting as L3 cache for the Skymont cluster?
2 is greater than 1.5. Skymont does not look to improve over Crestmont very much based on IPC reports. Based on the 14700K MT benchmarks, if Skymont performs similarly, Arrow Lake will not be a MT winner against 9950X (as was the case with 14700K before it). If Skymont somehow manages a big improvement over Crestmont, things will look very different. 3 more days and we will know for sure.
If passmark scaling is pretty linear only 8 Lion Coves @ full MT core boost @5.4GHz gives nearly 40000 points. 16 Skymont cores should also do at least 40K with their full 4.6GHz boost so unlimited Arrowlake should do about 80K or even more.

It doesn't scale well AT ALL. Seems like a totally useless benchmark for MT to me.
 

coercitiv

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Skymont does not look to improve over Crestmont very much based on IPC reports.
The current IPC reports we have so far are done for Skymont without an L3. It's been mentioned a few times already, the SLC does not offer the performance improvements of an L3, it's purpose is more to save power while offering equal or somewhat higher bandwidth than the RAM.

Imagine Raptor Lake without L3, or even Zen 4/5.
 
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OneEng2

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The current IPC reports we have so far are done for Skymont without an L3. It's been mentioned a few times already, the SLC does not offer the performance improvements of an L3, it's purpose is more to save power while offering equal or somewhat higher bandwidth than the RAM.

Imagine Raptor Lake without L3, or even Zen 4/5.
I assume that you are saying that Arrow Lake Skymont cores will include L3?

While I have no frame of reference to imagine RL without L3, Zen 5c is exactly such a beast as I understand it.

All will be answered in 3 days :).
 

GTracing

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Aug 6, 2021
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I assume that you are saying that Arrow Lake Skymont cores will include L3?

While I have no frame of reference to imagine RL without L3, Zen 5c is exactly such a beast as I understand it.

All will be answered in 3 days :).
Zen5c has L3 cache, it's less per core than regular Zen5.
 

Wolverine2349

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I assume that you are saying that Arrow Lake Skymont cores will include L3?

While I have no frame of reference to imagine RL without L3, Zen 5c is exactly such a beast as I understand it.

All will be answered in 3 days :).

In desktop and mobile laptop space, I think Intel Lunar Lake and Arrow Lake will beat Zen 5. I think Arrow Lake slaughters vanilla Zen 4 and 5 in gaming and trades blows with 7800X3D/9800X3D in lightly threaded games and pulls ahead of the 8 core X3D counterparts in heavily threaded games. And I think Arrow Lake beats 12 and 16 core Zen 4 and 5 X3D parts in heavily threaded games mostly.

In the server and enterprise space, I think Zen 5 overall wins over Intel Xeon counterparts.
 
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