Discussion Intel current and future Lakes & Rapids thread

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Ajay

Lifer
Jan 8, 2001
15,783
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@Ajay

Last I heard, Intel will be supplementing Intel 4/Intel 7nm with TSMC N3 but may be limited to 20kwpm from them as well, for an indeterminent period of time (having 20kwpm from your own fabs is different from having that allocation from TSMC for only a few months). And Intel is going to have to share Intel 4 and TSMC N3 wafers across their entire product lineup: Granite Rapids, Xe, Meteor Lake, and other crap.

Meteor Lake may not even show up on the desktop. Some were saying it was mobile-first or potentially mobile-only.

That's what I am wondering. Oh, and thanks for the correction (Granite, not Sapphire Rapids).

If suppose the CPU portion of the chip is 1/3rd of the chip area, then it would require about 1/3rd the rate. 20KWPM is about 1/3rd of 65KWPM. Plus, since it isn't node locked to Intel, TSMC could fill in the gap. I just don't (yet) see the shortage. I'm not saying that it won't happen, I'm just saying that there isn't yet enough data that convinces me that Intel will have a production shortage. Now, suppose that the Meteor Lake GPU tile was also going to be on Intel 4, then you have a strong case.

Well, guess we don't know what the compute tile will be - how many cores, cache size, etc. Intel seems to be going larger on P Cores.
 

dullard

Elite Member
May 21, 2001
25,137
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Well, guess we don't know what the compute tile will be - how many cores, cache size, etc. Intel seems to be going larger on P Cores.
The P cores are getting more transistors, but they are sticking with 8 P cores for many generations. So as the node shrinks, it might end up with smaller and smaller areas. Of course, that requires a lot of hand-waving regarding information we don't know such as how much more will cache sizes grow. As far as I know, the number of E cores on Meteor Lake hasn't leaked yet. If it is just a node shrink of Raptor Lake (similar to Intel's old "Tick"), 8 P and 16 E cores, then Meteor Lake could be a small chip. A small chip helps meet production limitations.

What Intel seems to be planning on is a very short Meteor Lake production. It is sandwiched between Raptor Lake (4Q 2022) and Arrow Lake (2H 2023). If Meteor Lake is late or Arrow Lake is early, then Meteor Lake might not really have much time in their production schedule.
 
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nicalandia

Diamond Member
Jan 10, 2019
3,331
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They might go to "12" but not much more than that.
I think they have found that 8 cores is the sweet spot(at least for them) and adding more would hinder efficiency... But a four chiplet(3 CCD and one IO) Zen4/5 will put a hurt on them at least on SMT
 

IntelUser2000

Elite Member
Oct 14, 2003
8,686
3,785
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Do intel still limited to 10 cores before Switching to Mesh?

So if Raptor Lake is getting 16 E cores, and we have 24 with Meteor and 32 with Lunar, there's a way of getting there without increasing ring stops much.

Raptor Lake - 2x 8 core E tile, for two ring stops, same as Alder Lake.
Meteor Lake - 3x 8 core tiles
Lunar Lake - 4x 8 core tiles

Then you get into the absolute limit of ring stops.
 
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eek2121

Platinum Member
Aug 2, 2005
2,974
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The P cores are getting more transistors, but they are sticking with 8 P cores for many generations. So as the node shrinks, it might end up with smaller and smaller areas. Of course, that requires a lot of hand-waving regarding information we don't know such as how much more will cache sizes grow. As far as I know, the number of E cores on Meteor Lake hasn't leaked yet. If it is just a node shrink of Raptor Lake (similar to Intel's old "Tick"), 8 P and 16 E cores, then Meteor Lake could be a small chip. A small chip helps meet production limitations.

What Intel seems to be planning on is a very short Meteor Lake production. It is sandwiched between Raptor Lake (4Q 2022) and Arrow Lake (2H 2023). If Meteor Lake is late or Arrow Lake is early, then Meteor Lake might not really have much time in their production schedule.

Intel really doesn’t need 8 P cores. If they could give Gracemont a 15-20% IPC bump, triple down on the number of cores, improve latency, and possibly give frequencies a bump, they could get away with 4 P-cores.

What I could see them doing is using TSMC 4nm/3nm alongside Intel 4 for the compute tile, and TSMC 6nm/Intel 7nm for the GPU tile.

I don’t buy that they will have any serious shortages. Everyone I spoke with thought Alder Lake would sell out, however so far stock looks better than AMD did at launch. Intel could easily only launch enthusiast parts similarly to ADL-S if they have a shortage.

Note that they have stated there will be a client release.

However, we don’t know the die sizes for future products. They could be smaller.
 

TESKATLIPOKA

Platinum Member
May 1, 2020
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Twitter


PL: 150W is pretty good. PL: 241W is only 8% faster, but consumes 45% more power.
BTW the performance difference between 125W -> 241W PL is 28%.
 
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Accord99

Platinum Member
Jul 2, 2001
2,259
172
106
Thats pretty remarkable. If you watch the video CPU package power is 45W however. Still excellent
Also impressive is the 25244 score with package power of 117W, which is better than the 5950x.



Given the high performance/watt of Alder Lake at reasonable clock speeds, we may see AMD "recommend" 200+W power settings in reviews for its 16-core CPUs going forward.
 

jpiniero

Lifer
Oct 1, 2010
14,738
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I took a fresh look at the feasibility of Meteor Lake, and it does seem feasible but the CPU chiplet would need to be dual sourced I think despite being tiny. Without the dual source they would most likely have to do something like they did with Comet/Ice where they do Raptor Lake mobile alongside Meteor Lake products.

Either way I think it's likely to be only mobile and any OEM desktops willing to use the mobile processors.
 

Hitman928

Diamond Member
Apr 15, 2012
5,422
8,330
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Also impressive is the 25244 score with package power of 117W, which is better than the 5950x.



Given the high performance/watt of Alder Lake at reasonable clock speeds, we may see AMD "recommend" 200+W power settings in reviews for its 16-core CPUs going forward.

Is he manually undervolting?
 

Accord99

Platinum Member
Jul 2, 2001
2,259
172
106
Is he manually undervolting?
I think so, but I don't think it's too unfair. The 5950x is already pretty well-tuned by AMD, you can't use a very high negative offset (compared to the lower tier 5000 models) with PBO curve optimizer before a 5950x becomes unstable.
 

Hitman928

Diamond Member
Apr 15, 2012
5,422
8,330
136
I think so, but I don't think it's too unfair. The 5950x is already pretty well-tuned by AMD, you can't use a very high negative offset (compared to the lower tier 5000 models) with PBO curve optimizer before a 5950x becomes unstable.

Eh, depends on the sample and how you undervolt. You can get a pretty strong undervolt if you're willing to shave off the top range of frequencies. Also not sure if it is truly stable at these voltages, hard to follow when I don't speak a word of the language. If it is manual undervolt results, it's still interesting, but makes the comparison to the competition far less valid.
 

Markfw

Moderator Emeritus, Elite Member
May 16, 2002
25,668
14,676
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Also impressive is the 25244 score with package power of 117W, which is better than the 5950x.



Given the high performance/watt of Alder Lake at reasonable clock speeds, we may see AMD "recommend" 200+W power settings in reviews for its 16-core CPUs going forward.
Its better in single core, but not multi core or 28,641

And cpu-mokey gave the 12900k 27,198 stock, so by the same reviewer, it looses also.
 
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eek2121

Platinum Member
Aug 2, 2005
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Its better in single core, but not multi core or 28,641

I have to wonder how much higher it would go moving from 117W -> 143W
 
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