Is your Mac up to date with the latest version of the Mac operating system? Is it using the version required by some product that you want to use with your Mac? Which versions are earlier (older) or later (newer, more recent)? To find out, learn which version is installed now.
How to See if Your Mac’s Processor is 32-bit or 64-bit To see if your Mac’s processor is 32-bit or 64-bit, go to the Apple menu and choose About This Mac. Below the operating system version. Determine if Windows Vista, 7, 8 and 10 is 32-bit or 64-bit. Press and hold the Windows Key and the Pause key. In the System window, next to System type it lists 32-bit Operating System for a 32-bit version of Windows, and 64-bit Operating System if you're running the 64-bit version. Below is a picture and an example of this window.
If your macOS isn't up to date, you may be able to update to a later version.
Which macOS version is installed?
From the Apple menu in the corner of your screen, choose About This Mac. You should see the macOS name, such as macOS Mojave, followed by its version number. If you need to know the build number as well, click the version number to see it.
Which macOS version is the latest?
These are all Mac operating systems, starting with the most recent. When a major new macOS is released, it gets a new name, such as macOS Big Sur. As updates that change the macOS version number become available, this article is updated to show the latest version of that macOS.
If your Mac is using an earlier version of any Mac operating system, you should install the latest Apple software updates, which can include important security updates and updates for the apps that are installed by macOS, such as Safari, Books, Messages, Mail, Music, Calendar, and Photos.
| macOS | Latest version |
|---|---|
| macOS Big Sur | 11.0.1 |
| macOS Catalina | 10.15.7 |
| macOS Mojave | 10.14.6 |
| macOS High Sierra | 10.13.6 |
| macOS Sierra | 10.12.6 |
| OS X El Capitan | 10.11.6 |
| OS X Yosemite | 10.10.5 |
| OS X Mavericks | 10.9.5 |
| OS X Mountain Lion | 10.8.5 |
| OS X Lion | 10.7.5 |
| Mac OS X Snow Leopard | 10.6.8 |
| Mac OS X Leopard | 10.5.8 |
| Mac OS X Tiger | 10.4.11 |
| Mac OS X Panther | 10.3.9 |
| Mac OS X Jaguar | 10.2.8 |
| Mac OS X Puma | 10.1.5 |
| Mac OS X Cheetah | 10.0.4 |
The steps to determine whether your computer has a 32-bit or 64-bit processor (CPU) depend on the type of operating system installed. Below are the steps to determine the processor type for Windows, Mac, and Linux.
Windows 8 and 10
To determine your CPU type in Windows 8 and Windows 10:
- In the Windows search box, type system information and select the System Information icon.
Or, if you do not have a search box (because you have disabled it):
- Open a File Explorer window by pressing Windows Key + E.
- On the left, right-click This PC.
- In the context menu, select Properties. The System Properties window opens.
- In the System Properties window, find your System type, which lists your operating system and CPU type.
Earlier versions of Windows
If you are using an earlier version of Windows, follow these steps.
- Open the Start menu > All Programs. Open the Accessories folder, then the System Tools folder. In the System Tools folder, select the System Information option.
On the right side of System Information, look for the System Type option under the Item column. The associated value, in the Value column, will tell you which type of CPU the computer has in it. If the System Type value includes 'x86' in it, the CPU is 32-bit. If the System Type value includes 'x64' in it, the CPU is 64-bit.
Determine if using 32-bit or 64-bit version of Windows
Microsoft Windows is available in 64-bit and 32-bit. 32-bit processors can only run 32-bit versions of Windows. However, 64-bit processors can run either the 64-bit or 32-bit versions.
To determine if the version of Windows on your computer is 32-bit or 64-bit, choose your version and follow the steps.
Determine if Windows Vista, 7, 8 and 10 is 32-bit or 64-bit
- Press and hold the Windows Key and the Pause key.
- In the System window, next to System type it lists 32-bit Operating System for a 32-bit version of Windows, and 64-bit Operating System if you're running the 64-bit version. Below is a picture and an example of this window.
Determine if Windows XP is 32-bit or 64-bit
- Press and hold the Windows Key and the Pause key or open the System icon in the Control Panel.
- In the General tab of the System Properties window, if it has the text Windows XP, the computer is running the 32-bit version of Windows XP. If it has the text Windows XP Professional x64 Edition, the computer is running the 64-bit version of Windows XP.
Determine if Windows 2000 and prior is 32-bit or 64-bit
Windows operating systems, from Windows 95 to Windows 2000, are all 32-bit. There are no 64-bit versions of these operating systems.
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Apple macOS
On the macOS, click the Apple icon in the menu bar. Select the About This Mac option in the Apple menu. On the About This Mac window, click the More Info option. Open the Hardware section and find the Processor Name attribute. Once listed, perform an Internet search, using that CPU's processor name as a keyword, to determine if it's a 32-bit or 64-bit CPU.
| Processor | 32-bit or 64-bit |
|---|---|
| Intel Core Duo or Solo | 32-bit |
| Intel Core 2 Duo | 64-bit |
| Any Intel Xeon processor | 64-bit |
| Intel Core i3 | 64-bit |
| Intel Core i5 | 64-bit |
| Intel Core i7 | 64-bit |
As seen in the above chart all the most recent Mac computers are 64-bit processors.
Linux
On the Linux operating system, access the command line interface and enter the following command.
Look for 'lm' in the command output. If lm is found in the output, then the CPU is 64-bit. If you don't see lm or see i386, i486, i586, or i686 in the output, then the CPU is 32-bit. Below is an example output of the above line with lm in the information.
Determine if the Linux kernel is 32-bit or 64-bit
Using the uname command, you can determine if your Linux kernel is 32-bit or 64-bit by running the command below.
This command would give you output similar to the example output below.
If you see x86_64 in the output, this indicates it is x86 and that it is 64-bit.
Additional information
How To Find Out If Mac Game Is 64-bit Windows 10
- See 32-bit and 64-bit dictionary definitions for our additional information and related links.