Cpu-z and hwmonitor showing different voltages

[ADMINseeker]

Hi all, I recently started to dabble around with overclocking my 8700k. And when I set my voltage to static in the bios to lets say 1.200 cpu-z will show 1.200 but hwmonitor shows numbers between 0.600 and 1.440. Which one should I believe?

1080 Ti
i7-8700k
Asus z370 TUF pro
16gb ddr4 2666mhz

 

[lumineZ]

HWmonitor.
The 0.600 is minimum and the 1.440 is maximum or peak

Cpu-z only show current Vcore.