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.
#How to check macbook 32 or 64 bit how to#
Support for a 64-bit address space-that is, support for concurrent use Just like its predecessors, Windows 10 is also available in both 32-bit and 64-bit types. How to check 32bit or 64bit win on windows 7, 10. El Capitan changed the way you could find out by going to the Apple icon, but this tutorial wil. What Is 64-Bit Computing?įor the purposes of this document, 64-bit computing is defined as The fastest way to find out if your Mac is 32 bit or 64 bit. 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. In the CPU section, you see a list of apps running on your Mac. Launch Activity Monitor, which is in Applications > Utilities. But it only works when an app is launched and running. 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. Find 32-bit apps on your Mac through Activity Monitor There’s an app called Activity Monitor that you can use to identify if an app is 32-bit or 64-bit.