Architectures
CentOS supports only the x86 architectures:
- x86 (32-bit)
- x86-64 (AMD's AMD64 and Intel's EM64T, 64-bit)
The following architectures are not supported by CentOS (as of version 5):
- i586 (x86 missing PAE)
- IA-64 (Intel Itanium architecture, 64-bit) (beta support since CentOS 3)
- PowerPC/32 (Apple Macintosh and PowerMac running the G3 or G4 PowerPC processor) (beta support since CentOS 3)
- IBM Mainframe (eServer zSeries and S/390) (not CentOS 5)
- Alpha (CentOS 4 only)
- SPARC (beta support since CentOS 3)
Read more about this topic: CentOS