Discussion Apple Silicon SoC thread

[Eug]

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:

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M1 Ultra discussion here:

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M2 discussion here:

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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:

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[Heartbreaker]

They can't skip M2 for the high end, that's what the Mac Pro will be based on.

No one knows what the Mac Pro will use, or when it arrives. If one can believe rumors that M3 chips arrives as soon as next year, then it could be that the Mac Pro waits for it.

 

[Eug]

Professional machines and their users are less concerned with small performance bumps or hardware changes and people won't have a problem buying year old hardware as long as they know it's going to receive long-term support.

Apple had a pretty aggressive cull this year with macOS 13 Ventura. Basically nothing prior to 2017 is supported.

Interestingly, the main single feature commonality to all of these machines I can find is that all the supported Macs have 4K 10-bit HDR h.265 HEVC decode in hardware.

macOS 13 Ventura: These are the Macs that will support the new operating system - 9to5Mac

Apple just announced macOS 13 Ventura. With the transition from Intel to its own silicon already completed and the M2...

9to5mac.com

• 2017 iMac and later
• 2017 iMac Pro and later
• 2018 MacBook Air and later
• 2017 MacBook Pro and later
• 2019 Mac Pro and later
• 2018 Mac mini and later
• 2017 MacBook and later
• 2022 Mac Studio

 

[Heartbreaker]

I have to be critical of Apple here. There is no way a modern laptop that costs that much money should support one display. That's just not acceptable.

These are Apples entry level chips, so one external monitor is sufficient for the vast majority of users.

 

[StinkyPinky]

These are Apples entry level chips, so one external monitor is sufficient for the vast majority of users.

It really isn't. Two monitors should be a basic requirement.

 

[Eug]

These are Apples entry level chips, so one external monitor is sufficient for the vast majority of users.

I'm not optimistic, but I'm hoping the M2 Mac mini supports two 5K displays. Right now the M1 supports two external displays, but one is Thunderbolt at up to 6K and one is HDMI up to 4K. That's an awkward combo for a lot of people. The 6K is too expensive, and you can't run a pair of 5K displays. However, supporting two 5K displays would require having more Thunderbolt ports than the M1 model.

Maybe a hypothetical high end M2 Mac mini would get more Thunderbolt ports and support 2 Thunderbolt displays.

It really isn't. Two monitors should be a basic requirement.

For a MacBook Air, I think support for a single external display makes sense from their marketing perspective. I don't have major complaints with this idea, even though it is restrictive for a small minority of users. The vast majority of MacBook Air owners have no desire to run dual external displays.

 

[gdansk]

Honestly, I'm a fan of the M series chips and I have a M1 Max laptop myself.

However my wife hates macs so I bought her a Samsung Book 2 or whatever it is called. Fantastic laptop. Came with 16GB ram, i7 10 core cpu, 512GB SSD, Full HD OLED display on 13 inches, great battery life that lasts forever, with good port choice and well made, and it supports four external displays. Cost me a grand. Apple need to stay competitive.

I have to be critical of Apple here. There is no way a modern laptop that costs that much money should support one display. That's just not acceptable.

I totally agree regarding the display limitation. Especially in the MBP13. How is that Pro at all...

 

[Commodus]

I totally agree regarding the display limitation. Especially in the MBP13. How is that Pro at all...

There's a better case to be made for the 13-inch MacBook Pro supporting multiple monitors. That model honestly feels like it needs to be cut... it's actually a step backward from the new Air in terms of connectivity, and of course more than a few people hate the Touch Bar.

 

[Mopetar]

Apple had a pretty aggressive cull this year with macOS 13 Ventura. Basically nothing prior to 2017 is supported.

Interestingly, the main single feature commonality to all of these machines I can find is that all the supported Macs have 4K 10-bit HDR h.265 HEVC decode in hardware.

macOS 13 Ventura: These are the Macs that will support the new operating system - 9to5Mac

Apple just announced macOS 13 Ventura. With the transition from Intel to its own silicon already completed and the M2...

9to5mac.com

• 2017 iMac and later
• 2017 iMac Pro and later
• 2018 MacBook Air and later
• 2017 MacBook Pro and later
• 2019 Mac Pro and later
• 2018 Mac mini and later
• 2017 MacBook and later
• 2022 Mac Studio

I expect we'll see an even more aggressive cull once they have a full transition to ARM. Professionals likely care less about the OS updates as long as their version still sees security updates. Unless you're a software developer (in which case you're going to have ARM-based Macs for testing purposes) you probably don't care about the latest OS version and whatever emoji crap Apple has added to it.

 

[Doug S]

It really isn't. Two monitors should be a basic requirement.

What percentage of laptop owners (especially of entry level / ultrabook laptops) do you think use two external monitors? Or even OWN two monitors sitting next to each other anywhere in their house? I'd bet the number is in the low single digit percentage.

The people who populate these forums are NOT typical users. Come to think of it, *I* am one of those populating these forums and I have exactly one monitor in my house. I could easily afford a wall of monitors like Hollywood thinks all hackers have, I just don't see the point.

 

[Doug S]

Oh and they can support two monitors, you just have to google for 30 seconds to find out how:

https://www.macrumors.com/2021/10/12/hyper-dual-4k-display-hubs-for-m1-macbooks/

One 4K monitor is limited to 30 fps which is fine for text but not if you need both monitors for e.g. video editing.

 

[uzzi38]

Oh and they can support two monitors, you just have to google for 30 seconds to find out how:

https://www.macrumors.com/2021/10/12/hyper-dual-4k-display-hubs-for-m1-macbooks/

One 4K monitor is limited to 30 fps which is fine for text but not if you need both monitors for e.g. video editing.

Oh it only requires a $130 hub? Gee, thanks.

Yeah, no thanks.

 

[uzzi38]

What percentage of laptop owners (especially of entry level / ultrabook laptops) do you think use two external monitors? Or even OWN two monitors sitting next to each other anywhere in their house? I'd bet the number is in the low single digit percentage.

The people who populate these forums are NOT typical users. Come to think of it, *I* am one of those populating these forums and I have exactly one monitor in my house. I could easily afford a wall of monitors like Hollywood thinks all hackers have, I just don't see the point.

It is becoming increasingly common in work places to want to use two monitors at the same time, especially amongst software developers, but even more generally than that. If we're going off anecdotal evidence, then all the desks at the company I work at all feature at least two monitors, regardless of what role you work in.

Nobody's suggesting Apple need to support 50 displays or something stupid like that, but just the ability to run two external monitors for a side-by-side setup with two external monitors of equal sizes would make the majority of people happy. The ideal situation would definitely be to support 4 external monitors like their competitors, but 2 would be a heck of a lot more acceptable than the 1 they have currently.

 

[Heartbreaker]

It really isn't. Two monitors should be a basic requirement.

You have to realize you aren't most people. My friends with laptops don't have even 1 monitor connected.

 

[ashFTW]

It is becoming increasingly common in work places to want to use two monitors at the same time, especially amongst software developers, but even more generally than that. If we're going off anecdotal evidence, then all the desks at the company I work at all feature at least two monitors, regardless of what role you work in.

Nobody's suggesting Apple need to support 50 displays or something stupid like that, but just the ability to run two external monitors for a side-by-side setup with two external monitors of equal sizes would make the majority of people happy. The ideal situation would definitely be to support 4 external monitors like their competitors, but 2 would be a heck of a lot more acceptable than the 1 they have currently.

I personally dislike using multiple monitors simultaneously, it causes me neck/shoulder strain. I rather use one large monitor with virtual spaces. Love my two 27” iMac Pro’s. One of them I use remotely using “share screen” feature. My macs don’t support the  XDR display, otherwise I would have considered it, though it’s an overkill and too expensive to justify for my needs.

 

[Heartbreaker]

It is becoming increasingly common in work places to want to use two monitors at the same time, especially amongst software developers, but even more generally than that. If we're going off anecdotal evidence, then all the desks at the company I work at all feature at least two monitors, regardless of what role you work in.

I would bet they wouldn't be equipping their software developers with entry level machines.

 

[jpiniero]

I would bet they wouldn't be equipping their software developers with entry level machines.

I imagine most places issue the same laptop to virtually everybody. Maybe a software developer would get more ram but that's about it.

 

[Heartbreaker]

I imagine most places issue the same laptop to virtually everybody. Maybe a software developer would get more ram but that's about it.

Even if that were the case, I doubt they would standardize on Mackbook Airs with software developers in the mix.

So the argument that entry level machine like the MBA needs dual monitors because of software developers seems like a weak sauce argument.

 

[moinmoin]

Oh it only requires a $130 hub? Gee, thanks.

Yeah, no thanks.

But that's bargain for Apple users. /s

 

[Heartbreaker]

I'm not optimistic, but I'm hoping the M2 Mac mini supports two 5K displays. Right now the M1 supports two external displays, but one is Thunderbolt at up to 6K and one is HDMI up to 4K. That's an awkward combo for a lot of people. The 6K is too expensive, and you can't run a pair of 5K displays. However, supporting two 5K displays would require having more Thunderbolt ports than the M1 model.

Maybe a hypothetical high end M2 Mac mini would get more Thunderbolt ports and support 2 Thunderbolt displays.

I doubt there are more than two TB ports in the M2 chip. I think this is the config Apple has considered sufficient for entry level.

But I can't think of a technical reason why they couldn't support dual 5K monitors by using both TB ports for monitor output simultaneously on M2 Laptops/minis if they wanted to. At minimum perhaps requiring to shutdown the internal screen on the laptops when driving dual external monitors.

It just looks like they don't want to.

 

[Eug]

I imagine most places issue the same laptop to virtually everybody. Maybe a software developer would get more ram but that's about it.

Even if that were the case, I doubt they would standardize on Mackbook Airs with software developers in the mix.

So the argument that entry level machine like the MBA needs dual monitors because of software developers seems like a weak sauce argument.

I know a guy who worked as a designer for a multi-billion dollar corporation. The coders actually got the lower end machines. The designers all got MacBook Pros, but the coders all got MacBook Airs.

I don't know how many monitors they ran though. Perhaps the Airs were fine because they were Intel and could run multiple monitors. Or perhaps they just didn't run multiple monitors.

However, this is likely a small percentage of MBA users.

 

[repoman27]

TSMC'S original road map put N3 in 2022 (the public version). So yeah, Apple had to scramble a bit and make A15 an iteration of A14; rather than a more advanced A16 design. So it has affected the bulk of their product line. And of course Apple knew far in advance of almost anyone else given the fact that they have engineers at TMSC that work with FAB giant's Process development group.

And volume production was always solidly in the second half of 2022, in other words, too late for Apple to use it for that year's iPhones.

2019-10-28

Expectations are that the fab will be up and running, mass producing 3nm parts by late 2022 or early in 2023.

TSMC begins construction of next-gen 3nm fab

It is aiming for volume production from the 30 hectare facility late 2022 - to early 2023.

hexus.net

2020-4-17

This earnings call marks the first time TSMC started disclosing actual information about its 3-nanometer (N3) node. C.C. Wei says the company’s N3 remains on track with risk production scheduled for 2021. TSMC is targeting volume production in the second half of 2022.

TSMC Ramps 5nm, Discloses 3nm to Pack Over a Quarter-Billion Transistors Per Square Millimeter

TSMC reports a flat Q1 amid the COVID-19 pandemic, ramps its 5nm node with good yield and discloses key 3-nanometer (N3) details. N3 will be a full node jump over N5 and is expected to offer over a quarter-billion transistors per each millimeter square of silicon.

fuse.wikichip.org

HVM was eventually delayed a further couple months while TSMC ironed out some issues, but N3 was never going to arrive in time for the 2022 A series chips. The A15 on N5P was already fully validated and the iPhone 13 designs locked by September 2020. And the A16 on N4 was probably taped out in Q2'21.

 

[repoman27]

As someone who is currently sitting in front of an aging laptop plugged into a pair of rather nice desktop displays, I'm a little sad about the lack of support for more than one external display with the M2. Honestly, I would probably order an M2 MBA straightaway if it were not for that limitation.

The problem isn't with the PHYs, as both the M1 and M2 have two independent Thunderbolt 3 / USB4 ports in addition to the eDP output for the built-in panel / HDMI PCON. It boils down to the little M series GPUs only supporting 2 display pipes, and the display controller not being flexible enough to route both display output streams to the Type-C ports—one is always routed to the eDP interface. On the M1, that eDP display output stream is also limited to a maximum resolution of 5120 x 4096 (or "looks like 2560 x 2048" HiDPI), whereas the one that goes to the Type-C ports can do 6144 x 4096 ("looks like 3072 x 2048" HiDPI).

It would have been sweet if the M2 had inherited the M1 Pro's 3x 7680 x 4096 ("looks like 3840 x 2048" HiDPI) output capabilities. Although I suppose Apple will sell a lot of 8 GB unified memory / 8-core GPU M2 MBA configurations which might struggle a little with three 8K displays. Other GPUs tend to combine / consume two pipes for resolutions that would require more than 25.92 Gbit/s without compression, or the equivalent of 4-lanes of HBR3. In the case of Intel's Alder Lake IGPs, that works out to a maximum of 5120 x 3200, 60 Hz, 24 bpp for a single pipe, or 7680 x 4320, 60 Hz, 30 bpp for two, and subject to memory bandwidth availability. It seems like Apple has opted for bigger pipes but fewer of them.

According to Hector Martin, "One display pipe is larger than the die area of two performance CPUs on the M1 Pro."

https://twitter.com/x/status/1534001488154206209

 

[Roland00Address]

According to Hector Martin, "One display pipe is larger than the die area of two performance CPUs on the M1 Pro."

https://twitter.com/x/status/1534001488154206209

(switches from my earlier reference of Job to Faust)

Audrey II: Feed me, Seymour!

(Give me those display pipes)

 

[kschendel]

It really isn't. Two monitors should be a basic requirement.

IMO one external monitor is just fine. I actually don't use any, but then I only use the laptop for office-y stuff, not mainline development. I'd bet that 90% of Air buyers / users would have little or no interest in multiple external monitors.

 

[itsmydamnation]

i find this convo insane ,

Dual screens into a laptop dock is almost 100% standard in many organisation i work with. Desktops have been killed off because of remote working. While you can argue about a nice big ultra wide etc is better then two crap 1080P monitors, two crap 1080P monitors are way cheaper especially when one is already a sunk cost. Laptop in Dock + standalone screen is actually OHS nightmare.

I wonder how many people here work in big org's. I help big organisations design big I.T. things , I have a pretty good view of standard organisational fitouts.

also never underestimate enterprise shitware ( even HTML 5 etc) to only render correctly at one resolution/ Scale setting and that being 1080P, sad but true.