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2.2. Which Architecture Is My Computer?

Releases are separated by architecture, or type of computer processor. Use the following table to determine the architecture of your computer according to the type of processor. Consult your manufacturer's documentation for details on your processor, if necessary.
Processor manufacturer and model Architecture type for Fedora
Intel (except Atom 230, Atom 330, Core 2 Duo, Centrino Core2 Duo, and recent vintage Xeon); AMD (except Athlon 64, Athlon x2, Sempron 64, and Opteron); VIA C3, C7 i386
Intel Atom 230, Atom 330, Core 2 Duo, Centrino Core 2 Duo, and Xeon; AMD Athlon 64, Athlon x2, Sempron64, and Opteron; Apple MacBook, MacBook Pro, and MacBook Air x86_64
Apple Macintosh G3, G4, G5, PowerBook, and other non-Intel models ppc
Table 2.1. Processor and architecture types

i386 Works for Most Windows Compatible Computers

If you are unsure what type of processor your computer uses, choose i386.
The exception is if your computer is a non-Intel based Apple Macintosh. Refer to Table 2.1, “Processor and architecture types” for more information.

Intel Atom Processor Architectures Vary

The N and Z Series Atom processors are based on the i386 architecture. The 230 and 330 Series Atom processors are based on thex86_64 architecture. Refer to http://ark.intel.com/cpugroup.aspx?familyID=29035 for more details.