Discussion Apple Silicon SoC thread

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Eug

Eug

Lifer
Mar 11, 2000
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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:

Screen-Shot-2021-10-18-at-1.20.47-PM.jpg

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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M4 Family discussion here:

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M5 Family discussion here:

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M

Mopetar

Diamond Member
Jan 31, 2011
8,496
7,752
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CouncilorIrissa said:
The lighter chassis is very welcome. The 16-inch MBP is a heavy SOB.
Click to expand...

I've got a 16" model and never considered it overly heavy. The build quality is worth any added weight to me. The phenomenal battery life and typically cool and quiet operation is also a plus.

If you're moving it around constantly then maybe something lighter is better, but I want the capable mobile workstation that it is and wouldn't compromise on that to save half a pound of weight.
 
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poke01

poke01

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Mar 8, 2022
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Mopetar said:
I've got a 16" model and never considered it overly heavy. The build quality is worth any added weight to me. The phenomenal battery life and typically cool and quiet operation is also a plus.

If you're moving it around constantly then maybe something lighter is better, but I want the capable mobile workstation that it is and wouldn't compromise on that to save half a pound of weight.
Click to expand...
If the cooling got better it’s fine. Rumours from supply chain is that Apple is likely to implement solid state cooling in its next MBP redesign.
 
J

jdubs03

Golden Member
Oct 1, 2013
1,286
903
136
Ok just so there is a centralized location for M5 results as of now:

11in iPad Pro
WiFi- https://browser.geekbench.com/search?utf8=✓&q=J817AP
Cellular- https://browser.geekbench.com/search?utf8=✓&q=J818AP

13in iPad Pro
WiFi- https://browser.geekbench.com/search?utf8=✓&q=J820AP
Cellular- https://browser.geekbench.com/search?utf8=✓&q=J821AP

So far results available for the cellular 11in and for both 13in.
Single-core so far is clustering around 4100 pts.
Multi-core so clusters around 16000 for 10 core. Around 15000 for 9 core.

MacBook Pro- https://browser.geekbench.com/search?utf8=✓&q=J704AP

No results yet.
 
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jdubs03

Golden Member
Oct 1, 2013
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I’ll be curious to see more results, but yeah the score is quite good. That multi-core score almost 18,000. Bodes well for the higher binned variants.

Tigerick said:
Geez, 4.61GHz is pretty close to X2-Elite with same memory bandwidth, i.e.. 4.7GHz even though M5 is having 4 P-core. GB6 4268 ST score is king of single thread performance.
Click to expand...
X2 Elite X2E-88-100 would be the closest comparison. Though memory bandwidth is way higher. So unfortunately, not as like for like as one would want.

But it’s still basically 200 points higher than then X2E-96-100. ~4pct faster with 8pct less clock speed. And likely quite a lot less power.
 
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D

Doug S

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Feb 8, 2020
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So now I have two questions about M5:

1) why does it have a 5-6% higher IPC than A19P? What is the difference in the cores which accounts for that?
2) why is it running at a higher clock in Macbook Pro than iPad Pro?

For #2 they may be binning on frequency to put the faster ones in MBP, or binning on power and as well sacrificing a bit of top end clock to manage heat and battery life in the iPad Pro's restrictive form factor. Though I suppose they could do the clock sacrifice to meet power goals without needing to bin.
 
M

Mopetar

Diamond Member
Jan 31, 2011
8,496
7,752
136
Doug S said:
So now I have two questions about M5:

1) why does it have a 5-6% higher IPC than A19P? What is the difference in the cores which accounts for that?
2) why is it running at a higher clock in Macbook Pro than iPad Pro?

For #2 they may be binning on frequency to put the faster ones in MBP, or binning on power and as well sacrificing a bit of top end clock to manage heat and battery life in the iPad Pro's restrictive form factor. Though I suppose they could do the clock sacrifice to meet power goals without needing to bin.
Click to expand...

Is the cache larger or the memory bandwidth higher for the M5? If the underlying cores are identical then the obvious place to look first is the memory subsystem.

I think your assessment for #2 makes sense and is the most likely explanation.
 
M

mavere

Member
Mar 2, 2005
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Doug S said:
why is it running at a higher clock in Macbook Pro than iPad Pro?
Click to expand...
They needed slightly lower clocks to reduce throttling in the iPad, but they can’t have low clocks in the M5 MBP because that would exacerbate the battery life gap between that and future M5 Pro MBP.
 
J

johnsonwax

Senior member
Jun 27, 2024
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Doug S said:
So now I have two questions about M5:

1) why does it have a 5-6% higher IPC than A19P? What is the difference in the cores which accounts for that?
2) why is it running at a higher clock in Macbook Pro than iPad Pro?

For #2 they may be binning on frequency to put the faster ones in MBP, or binning on power and as well sacrificing a bit of top end clock to manage heat and battery life in the iPad Pro's restrictive form factor. Though I suppose they could do the clock sacrifice to meet power goals without needing to bin.
Click to expand...
Kind of remarkable what the Apple Silicon era has brought us. Can anyone even conceive of an iPad using an i5 (low-end MBP processor)? Now people are questioning why it might be running a fractionally slower clock than the fan-utilizing laptop.
 
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poke01

poke01

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Mar 8, 2022
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Apple was not the first to remove chargers in Europe for laptops due to the EU law.
Microsoft was.

www.notebookcheck.net

Microsoft's bold move: Expensive Surface Laptop 13 now ships without a charger

It’s a well known fact that many smartphones don’t come with a charger included in the box. Microsoft is now following suit and ships the new Surface Laptop 13 and Surface Pro 12 without a suitable power adapter, at least in Europe.
www.notebookcheck.net www.notebookcheck.net

www.windowscentral.com

Microsoft no longer includes a power supply with Surface Pro 11 in some regions — now you have to pay extra for one

Microsoft is now complying with an EU initiative that allows the Surface Pro 11 to ship without a power supply, instead charging extra for it as an optional accessory.
www.windowscentral.com www.windowscentral.com


oh and guess what they also charge extra for the charger. More companies will follow suit come CES.
 
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