intel-microcode 1.20130222.3 (amd64 binary) in ubuntu saucy

 This package contains updated system processor microcode for
 Intel i686 and Intel X86-64 processors. Intel releases microcode
 updates to correct processor behavior as documented in the
 respective processor specification updates.
 .
 Installing iucode-tool is recommended, as it can greatly reduce the
 size of the microcode data installed to the initramfs. It will also
 enable the best microcode update mode available on Linux kernel
 v3.9 and later (which requires an initramfs and iucode-tool).
 .
 For AMD processors, please refer to the amd64-microcode package.