OS X Mountain Lion System Requirements And Supported Macs

OS X Mountain Lion 10.8 RequirementsYesterday, Apple introduced their more unified operating system, OS X Mountain Lion (10.8). This is just seven months after the latest OS X Lion (10.7) was released. OS X Mountain Lion is expected to have more iOS features integrated along with many others. If you are a registered developer with Apple, you can download a demo preview from their site.

Basic Requirements:

  • 64-Bit Intel Core 2 Duo processor or better
  • Ability to boot into OS X 64-bit kernel
  • Advanced GPU chipset
  • Internet connection to download and install OS X Mountain Lion 10.8


**To check for 64 bit kernel boot support, open terminal > type uname -a and you will get a response something like the following:

Darwin MacBookAir 11.2.0 Darwin Kernel Version 11.2.0: Tue Aug 9 20:54:00 PDT 2011; root:xnu-1699.24.8~1/RELEASE_X86_64 x86_64

Look for “x86_64” to verify


Below, you will find Macs that are supported and those that are not supported as of the OS X Mountain Lion Developer Preview release.

Macs That Support OS X Mountain Lion 10.8

  • MacBook Pro – 13″ from mid 2009 or later, 15″ from late 2007 and newer, 17″ from late 2007 and newer
  • MacBook Air – late 2008 and newer
  • iMac – models from mid 2007 and newer
  • MacBook – 13″ aluminum from 2008, 13″ from 2009 and newer
  • Mac Mini – early 2009 and newer
  • Mac Pro – early 2008 models and newer
  • XServe – early 2009 models and newer


Macs Not Expected To Support OS X Mountain Lion

  • Anything with an Intel GMA 950 or x3100 integrated graphics card
  • Anything with an ATI Radeon X1600
  • MacBook models released prior to 2008
  • Mac Mini released prior to 2007
  • iMac models released prior to 2007
  • Original MacBook Air