METHOD 2: Using the Windows Command Promptįor this method, we'll be using the Windows command prompt, available in all versions of Windows. You will see the designation under 'System Type:' stating the system architecture. You will then see the System Properties dialog. Right-click on Computer and select Properties. Geekbench also features stress tests that can help you zero in on. Geekbench includes tests that were designed to simulate real-world situations, which makes it particularly useful for measuring how well your Mac can handle everyday tasks. Locate the Computer icon in the right column of your Start Menu:Ģ. Geekbench is a useful tool for measuring your Mac’s CPU performance and memory speeds. If you do not see a '圆4' designation, then your system architecture is 32-bit.ġ.

Click on the General tab, and look for the operating system description under System:Ħ4-bit systems will include the '圆4' designation in the description. You will then see the System Properties dialog.ģ. Right click on the My Computer icon and select Properties. Locate the My Computer icon on your desktop or Start menu.Ģ.

Below the operating system version and computer model name you’ll see your processor.

Please see our Licensing and Installation FAQ for current and previous platform support details.ġ. To see if your Mac’s processor is 32-bit or 64-bit, go to the Apple menu and choose About This Mac.

This Help Article will provide instructions for users unsure of which system architecture their machine is currently running. Similarly, CPU that are '32-bit' also have parts that are 128 bits (or more) wide.Beginning with IDL 6.3 and ENVI 4.3, Exelis Visual Information Solutions introduced support for both 32 and 64-bit versions of the Windows operating system. Of more than 4 GB of memory by a single executable program-no more, noīeginning with version 10.4, Mac OS X supports command-line 64-bitĮxecutables on G5-based Macintosh computers and 64-bit-capable Intelīeginning with version 10.5, Mac OS X supports full-featured 64-bitĪpplications on G5-based and 64-bit-capable Intel Macintosh computers.īeginning with Snow Leopard, Mac OS X uses a 64-bit kernel on someĪlso - CPU that are '64-bit' still have parts that are only 32 bits wide. Support for a 64-bit address space-that is, support for concurrent use What Is 64-Bit Computing?įor the purposes of this document, 64-bit computing is defined as You can have 32 bit code run on a 64 bit CPU.Ī nice overview of this subject is at Apple's 64-bit Transition Guide Keep in mind, this transition was started before Tiger was released on Apand is effectively complete. As you may have seen from all the answers - macs are different than other Operating Systems (OS) in that the 32 bit and 64 bit dividing line is all blurry.

Check your mac os architecture