OS X El Capitan Supported Mac + PC Compatibility list. Basic requirements for OS X El Capitan are modest: a 64-bit processor Intel, 2 GB of RAM and 8 GB of hard disk space. Supports Intel Core 2 Duo, Core i3, Core i5, Core i7 or Xeon.
Existing Mac users will be able to upgrade to the new operating system, not only with the current platform OS X Yosemite - El Capitan on the go, you can even OS X Mavericks.
OS X El Capitan can be installed on the following Mac:
iMac (Mid 2007 or newer)Some features of OS X El Capitan, such as AirDrop, Handoff, «smart" modem mode Instant Hotspot, demand newer models of computers.
MacBook (12-inch, 2015)
MacBook (13-inch Aluminum, Late 2008), (13-inch Early 2009 or newer)
MacBook Pro (13-inch mid-2009 or later), (15-inch, mid / late 2007 or newer), (17-inch end of 2007 or newer)
MacBook Air (late 2008 or newer)
Mac Mini (Early 2009 or newer)
Mac Pro (Early 2008 or newer)
Xserve (Early 2009)