Discussion Apple Silicon SoC thread

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Eug

Lifer
Mar 11, 2000
23,606
1,018
126
M1
5 nm
Unified memory architecture - LP-DDR4
16 billion transistors

8-core CPU

4 high-performance cores
192 KB instruction cache
128 KB data cache
Shared 12 MB L2 cache

4 high-efficiency cores
128 KB instruction cache
64 KB data cache
Shared 4 MB L2 cache
(Apple claims the 4 high-effiency cores alone perform like a dual-core Intel MacBook Air)

8-core iGPU (but there is a 7-core variant, likely with one inactive core)
128 execution units
Up to 24576 concurrent threads
2.6 Teraflops
82 Gigatexels/s
41 gigapixels/s

16-core neural engine
Secure Enclave
USB 4

Products:
$999 ($899 edu) 13" MacBook Air (fanless) - 18 hour video playback battery life
$699 Mac mini (with fan)
$1299 ($1199 edu) 13" MacBook Pro (with fan) - 20 hour video playback battery life

Memory options 8 GB and 16 GB. No 32 GB option (unless you go Intel).

It should be noted that the M1 chip in these three Macs is the same (aside from GPU core number). Basically, Apple is taking the same approach which these chips as they do the iPhones and iPads. Just one SKU (excluding the X variants), which is the same across all iDevices (aside from maybe slight clock speed differences occasionally).

EDIT:



M1 Pro 8-core CPU (6+2), 14-core GPU
M1 Pro 10-core CPU (8+2), 14-core GPU
M1 Pro 10-core CPU (8+2), 16-core GPU
M1 Max 10-core CPU (8+2), 24-core GPU
M1 Max 10-core CPU (8+2), 32-core GPU

M1 Pro and M1 Max discussion here:


M1 Ultra discussion here:


M2 discussion here:


Second Generation 5 nm
Unified memory architecture - LPDDR5, up to 24 GB and 100 GB/s
20 billion transistors

8-core CPU

4 high-performance cores
192 KB instruction cache
128 KB data cache
Shared 16 MB L2 cache

4 high-efficiency cores
128 KB instruction cache
64 KB data cache
Shared 4 MB L2 cache

10-core iGPU (but there is an 8-core variant)
3.6 Teraflops

16-core neural engine
Secure Enclave
USB 4

Hardware acceleration for 8K h.264, h.264, ProRes

M3 Family discussion here:

 
Last edited:

ashFTW

Senior member
Sep 21, 2020
312
235
96
I am sure this are only for Apple servers. They probably don’t want to depend on Nvidia.
The AI custom silicon perhaps could also be used on the studio/pro in a multi-chiplet configuration. Depends if there is a unifying architecture behind this effort across the product stack.
 

Saylick

Diamond Member
Sep 10, 2012
3,199
6,504
136

ashFTW

Senior member
Sep 21, 2020
312
235
96
I'm sure it will be based on an upscaled version of their own iPhone NPU, right? Or rather, the NPU in the iPhone will be a scaled down version of the server chip.
Yes, but I assume it won’t purely be a tensor processor. The NPU on the current A&M chips exist along with CPU and GPU. Some of that type of processing will be required as well. And I/O.
 

poke01

Senior member
Mar 8, 2022
755
748
106
The AI custom silicon perhaps could also be used on the studio/pro in a multi-chiplet configuration. Depends if there is a unifying architecture behind this effort across the product stack.
This is likely. Apple never designs for one config only but for it to scalable as possible.
 

Doug S

Platinum Member
Feb 8, 2020
2,285
3,560
136
I am sure this are only for Apple servers. They probably don’t want to depend on Nvidia.

I'll believe it when I see it. There are always rumors about Apple doing servers, it never happens.

What does Apple need with a huge AI cloud when their whole thing is on device AI? They certainly aren't going to be competing with Nvidia selling stuff into the open market.

This is just some random Weibo user who has one accurate call in his past (I don't count "iPhone 7 will be waterproof" everyone was expecting that, he might as well count predicting Apple adopting 5G to juice his total)
 

FlameTail

Platinum Member
Dec 15, 2021
2,356
1,275
106
Doesn't the M3 Max's CPU benefit from the larger SLC it has access to?

M3 Pro : 12 MB
M3 Max : 48 MB

Yet they both have effectively the same ST performance!

Cinebench 2024

Geekbench 6

This is true for previous M generations as well.
 

Doug S

Platinum Member
Feb 8, 2020
2,285
3,560
136
Doesn't the M3 Max's CPU benefit from the larger SLC it has access to?

M3 Pro : 12 MB
M3 Max : 48 MB

Yet they both have effectively the same ST performance!


Why would you expect more SLC is going to lead to higher ST performance? Especially in something like Cinebench?

I'll bet the working set size of the executable (i.e. the inner loops where the work is done) is easy fits in 16 MB, in fact likely fits in L2i. The data it works on will be larger but it probably has an access pattern that's easy for prefetching. If so SLC size (and probably L2d size) is irrelevant. Performance would depend on the DRAM being able to stream faster than the CPU can crunch, which it obviously can with LPDDR5 - and clearly doesn't need that much as PCs aren't hindered by slower DDR5.
 
Mar 11, 2004
23,089
5,566
146
Qualcomm Snapgragon X Elite is coming for Apple M3 & M4 SoC performance!

That's great, but I don't think it matters, people aren't going to move to Windows just because it has equal performance.

Now, we'll see if mass consumers care about the AI, but that alone was a reason I personally began migrating away from Windows. Unfortunately now it seems Apple is jumping on that bandwagon (paired with Google to boot), but I at least have some belief they will at least not be forced to use it and that maybe Apple will still hold to privacy and let me opt out of letting them siphon my personal stuff to fuel it and constantly slap me in the face going "WHY AREN'T YOU USING OUR AI SEARCH BING AI BY BING MICROSOFT BING AI SEARCH?!?!? ARE YOU SURE YOU DON'T WANT TO MAKE BING AI SEARCH YOUR DEFAULT SEARCH AND BING YOUR DEFAULT BROWSER FOR BING AI SEARCH?" like Microsoft is heading towards.


Great you're gonna start hyping that stupid French car company too?

It has begun.


Apple is coming for AMD and Nvidia.

Meh, despite their M cores being great, it hasn't led to MacOS suddenly having 50% marketshare. Simply put, there are other factors.

I am sure this are only for Apple servers. They probably don’t want to depend on Nvidia.

I do think not helping Nvidia is part of it (Apple seems to f'n hate Nvidia still), but I'd guess keeping proprietary to Apple systems is the bigger point. I think Apple recognized the risk of using all the content you could just access (whether you had license/right to access it be damned; not just for the issue of the potential legality/financial aspect but also because why would you want to build AI around internet that is like at best 40% trash trolling and is just going to poison your models with noise?), and but also knew the privacy laws and other (like, good luck dealing with China with AI models not censored by the Great Firewall), so you'll need to isolate the data sets its built on.

Which, Apple could do wonders if they worked deals to license content (be the first to do so - before they get too deep in models built on the content wherein the content companies can really hold them over a barrel), helping the lawsuits against all the current AI stuff that is based on ridiculous amount of stolen IP, which if successful would probably bankrupt all the current AI companies except for Google and Microsoft (and would probably hit them so hard that investors will demand they layoff basically everything that isn't AI). OpenAI would probably be bought by Microsoft in exchange for paying their licensing bills (or rather that would be the ultimate result, as OpenAI would probably go under and then Microsoft would just buy what made sense to buy of it if they don't simply just take it via hiring Altman and his sycohpants).

I am aware there are some licensing deals made already, but its a drop in the bucket compared to what these are built on, and even bigger is if the EU's privacy rules come into play, then these models are screwed. Heck in the US, current privacy laws regarding childrens' data alone could probably unravel these models.

I'll believe it when I see it. There are always rumors about Apple doing servers, it never happens.

What does Apple need with a huge AI cloud when their whole thing is on device AI? They certainly aren't going to be competing with Nvidia selling stuff into the open market.

This is just some random Weibo user who has one accurate call in his past (I don't count "iPhone 7 will be waterproof" everyone was expecting that, he might as well count predicting Apple adopting 5G to juice his total)

Yeah, I don't buy it either. But, they could sell access to it as a service business to business (which could be significant for App developers; possibly could be big in the creative markets as well if Apple shows willingness to recognize and pay for licensing rights). It could also be significant if rules about AI, especially privacy and licensing rights, come into affect. All the current AI models are built on basically everything they could access - rights be damned (they try to claim otherwise but they've admitted the reality - lots of them straight up say that having to adhere to legal licensing rights would kill their viability which tells you everything you need to know). If they have to try to remove stuff based on IP and privacy, they'll pretty much have to start from scratch. If Apple establishes licensing and other protections, they could have a huge leg up, just from stability over the turmoil that others will deal with.

Servers? What are you guys smoking?

Whatever farts are left in the couch cushions at this point it seems. Sheesh this place has become a nightmare of constant "OMG!!!!!" constant silly over the top reactions to everything. There's one poster in particular that seems to be driving it (who is hyping like basically everything, but weirdly acts like every single one is going to destroy the entire rest of the industry, and just bounces between threads on each).
 
Reactions: dr1337

Doug S

Platinum Member
Feb 8, 2020
2,285
3,560
136
There's one poster in particular that seems to be driving it (who is hyping like basically everything, but weirdly acts like every single one is going to destroy the entire rest of the industry, and just bounces between threads on each).

But at least he choose an appropriate handle for that behavior
 

Mopetar

Diamond Member
Jan 31, 2011
7,875
6,115
136
Apple will likely never have 50% market share, but they don't care as long as they have the 10% of the market that makes them one of the largest companies in the world by revenue and the largest non-oil company by profit.

The only way Apple gets to a 50% share in computers is either they become a niche product category or the world as a whole becomes considerably more wealthy.
 

poke01

Senior member
Mar 8, 2022
755
748
106
Or they sell $200-$500 dollar laptops. Which is very unlikely.
Apple will likely never have 50% market share, but they don't care as long as they have the 10% of the market that makes them one of the largest companies in the world by revenue and the largest non-oil company by profit.

The only way Apple gets to a 50% share in computers is either they become a niche product category or the world as a whole becomes considerably more wealthy.
 
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