They can only run OS X El Capitan if they have at least 2GB of RAM. Of these computers, the following models were equipped with 1GB RAM as the standard option on the base model when they were shipped originally. These computers can run El Capitan, provided they have at least 2GB of RAM: For example, Apple notes that the newly available Metal API is available on 'all Macs since 2012'. 2.2.7 Other applications found in OS X 10.11 El CapitanĪll Macintosh computers that can run Mountain Lion, Mavericks, or Yosemite can run El Capitan, although not all of its features will work on older computers.