If you're using a Mac with an Apple silicon chip (e.g. M1, M2, etc.), you will see Model Number and Chip line items. All Apple silicon chips use 64-bit architecture.Mac

1. Click on the Apple icon in the menu bar.
2. Select the About This Mac option in the Apple menu.
3. On the About This Mac window, click the More Info.
4. Open the Hardware section and find the Processor Name.
5. Use the chart below to identify your processor type:

Select the Start button, then select Settings > System > About . At the right, under Device specifications, see System type.

Which Mac OS is 32-bit : For many years, Apple supported 32bit applications, either on native 32bit hardware, or on 64bit hardware alongside 64bit applications. The last version of macOS that supported the execution of 32bit applications was macOS 10.14 “Mojave”, and Apple dropped all support for this version in October 2021.

Is Apple M1 32 or 64

While the M1 SoC has 66.67 GB/s memory bandwidth, the M1 Pro has 200 GB/s bandwidth and the M1 Max has 400 GB/s bandwidth. The M1 Pro comes in memory configurations of 16 GB and 32 GB, and the M1 Max comes in configurations of 32 GB and 64 GB.

Which macOS is 64-bit only : macOS Catalina exclusively supports 64-bit applications.

Timeline of releases

Version	Release Name	Kernel
macOS 10.12	Sierra	64-bit
macOS 10.13	High Sierra
macOS 10.14	Mojave
macOS 10.15	Catalina

macOS Catalina

macOS Catalina exclusively supports 64-bit applications. 32-bit applications no longer run (including all software that utilizes the Carbon API as well as QuickTime 7 applications, image, audio and video codecs).

Is x86 32-bit

The x86 architecture is based on Intel's 8086 (hence the name) microprocessor and its 8088 variant. At first, it was a 16-bit instruction set for 16-bit processors, and later it grew to 32-bit instruction sets. The number of bits signifies how much information the CPU can process per cycle.Can I run 32-bit programs on a 64-bit computer Most programs made for the 32-bit version of Windows will work on the 64-bit version of Windows except for most Antivirus programs. Device drivers that are made for the 32-bit version of Windows will not work correctly on a computer running a 64-bit version of Windows.Not so much because the M1 is 64 bit only, as 32 bit x86 applications wouldn't have run on it either way. Perhaps to make Rosetta simpler, as it only had to support 64 bit code. But also with Catalina, all old and unmaintained applications did no longer run. Those applications, which run on Catalina, do run on M1.

macOS Catalina exclusively supports 64-bit applications. 32-bit applications no longer run (including all software that utilizes the Carbon API as well as QuickTime 7 applications, image, audio and video codecs).

Which Mac OS is 64-bit : Timeline of releases

Version	Release Name	Processor support
macOS 10.13	High Sierra	64-bit Intel
macOS 10.14	Mojave
macOS 10.15	Catalina
macOS 11	Big Sur	64-bit Intel and ARM

Is M2 better than M1 Pro : The M2 will be slightly faster in single-core but the M1 Pro/Max is faster in multi-core. The MBP has more features and more ports, plus you can configure with more RAM. I'd HIGHLY advise getting 24 or 32GB of RAM instead of 16GB.

Why did Apple drop 32-bit

This means that many legacy apps will no longer function at all. The answer to why Apple is dropping 32-bit app support is quite simple: to improve the performance of the iPhone.

The current 11" Macbook Air uses an intel i5 64-bit processor. The Core 2 Duo line was intel's first consumer 64-bit processors.32-bit

Today, the term x86 denotes any 32-bit processor capable of running the x86 instruction set.

Is x86 32 or 64 : For a 32-bit version operating system, it will say X86-based PC. For a 64-bit version, you'll see X64-based PC.