We can get CPU information in GNU/Linux by typing the following command:
$ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 22 model name : Intel(R) Celeron(R) CPU 430 @ 1.80GHz stepping : 1 cpu MHz : 1800.045 cache size : 512 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep ... bogomips : 3600.09 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: