Check CPU Clock Speed on Linux

we can find cpu processor details using below commands 

1. lscpu: 

It display information about the CPU architecture

# lscpu

Architecture:          x86_64

CPU op-mode(s):        32-bit, 64-bit

Byte Order:            Little Endian

CPU(s):                96

On-line CPU(s) list:   0-95

Thread(s) per core:    2

Core(s) per socket:    24

Socket(s):             2

NUMA node(s):          1

Vendor ID:             GenuineIntel

CPU family:            6

Model:                 85

Model name:            Intel(R) Xeon(R) Platinum 8168 CPU @ 2.70GHz

Stepping:              4

CPU MHz:               3374.652

CPU max MHz:           3700.0000

CPU min MHz:           1200.0000

BogoMIPS:              5400.00

Virtualization:        VT-x

L1d cache:             32K

L1i cache:             32K

L2 cache:              1024K

L3 cache:              33792K

NUMA node0 CPU(s):     0-95

2. dmidecode: print cpu speed

# dmidecode -t processor | grep "Speed"

        Max Speed: 4000 MHz

        Current Speed: 2700 MHz

        Max Speed: 4000 MHz

        Current Speed: 2700 MHz

3. Each CPU processor details from  /proc/cpuinfo file 

cat  /proc/cpuinfo

cat  /proc/cpuinfo | grep