hspice job CPU which fast ？

i7 4790k
I7 5820k
Xeon E5-2620v2
Xeon E3-1231 v3
e3 1246 v3

e3 1231 比 i7 4770 慢 ?
which fast ? for single job and hspice simulation

I7 4790K 4.00GHz4GHzTurbo 4.4GHz
I7 5820k 3.30GHz3.3GHzTurbo 3.6GHz
Xeon E5-2620v22.1GHzTurbo 2.6GHz
Xeon E3-1231 v33.4GHzTurbo 3.8GHz
Xeon E3-1246 v33.5GHzTurbo 3.9GHz
the clock speed of your processor！ Which directly limits Spice simulation speed

how to check CPU real clock in linux OS
thank you.