Written by
Jenny Zeng
Summary: In this post from iBoysoft, we cover two methods to check if your CPU is 32-bit or 64-bit with the architecture x64 or ARM. You'll learn how to tell if the CPU is 32-bit or 64-bit from About This Mac and Terminal.
"Is my Mac 64-bit or 32?"
Are you wondering if your Mac is 64-bit or 32-bit? Here are two ways to find out. As a rule of thumb, any Mac newer than a 2008 MacBook should have a 64-bit processor and operating system.
Way 1: Check if CPU is 32 or 64 bit via About This Mac
- Open the Apple menu and click About This Mac.
- Below the Mac model name is the information about your processor.
- Compare the Processor Name to the table below to know if your Mac is 32 or 64-bit.
| Processor Name | 32 or 64-bit | ARM or x64 |
| Intel Core Solo | 32 bit | \ |
| Intel Core Duo | 32 bit | \ |
| Intel Core 2 Duo | 64 bit | x64 |
| Intel Quad-Core Xeon | 64 bit | x64 |
| Dual-Core Intel Xeon | 64 bit | x64 |
| Quad-Core Intel Xeon | 64 bit | x64 |
| Core i3 | 64 bit | x64 |
| Core i5 | 64 bit | x64 |
| Core i7 | 64 bit | x64 |
| Core i9 | 64 bit | x64 |
| Apple M1 | 64 bit | ARM |
| Apple M2 | 64 bit | ARM |
| Apple M3 | 64 bit | ARM |
| Apple M4 | 64 bit | ARM |
In conclusion, all Apple Silicon Macs are based on the ARM architecture and are 64-bit. Most Intel processors are 64-bit, except for the Intel Core Solo and Intel Core Duo.
Now that you know if your Mac is 32 or 64-bit, ARM-based or x64, share the information with your friends!
Way 2: Tell if CPU is 32 or 64 bit from Terminal
Alternatively, you can check if the CPU is 32-bit or 64-bit in Terminal. Here's how:
- Launch Terminal from the Applications > Utilities folder.
- Type the following command and hit Enter to learn if your Mac is 32 or 64-bit.getconf LONG_BITIf the output is 64, it suggests that the system uses 64-bit long integers.
- Type the following command and hit Enter to know if your Mac is x64 or ARM-based.uname -mIf the output is x86_64, it indicates that the system is running on a 64-bit architecture.
Does your Mac use 64-bit or 32-bit? Share the post to benefit more users!
