CONFIG_CPU_ADVANCED is not available for the selected architecture x86.
Result is shown for architecture mips

Override CPU Options

configname: CONFIG_CPU_ADVANCED

Linux/MIPS Kernel Configuration
└─>Kernel type
└─>Override CPU Options
In linux kernel since version 2.6.12 )
Saying yes here allows you to select support for various features
your CPU may or may not have. Most people should say N here.
depends
CONFIG_32BIT