Linux

To show CPU info on Linux 

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lscpu

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Architecture:          x86_64 
CPU op-mode(s):        32-bit, 64-bit 
Byte Order:            Little Endian 
CPU(s):                4 
On-line CPU(s) list:   0-3 
Thread(s) per core:    1 
Core(s) per socket:    4 
Socket(s):             1 
NUMA node(s):          1 
Vendor ID:             GenuineIntel 
CPU family:            6 
Model:                 78 
Model name:            Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz 
Stepping:              3 
CPU MHz:               800.025 
CPU max MHz:           3200.0000 
CPU min MHz:           800.0000 
BogoMIPS:              6399.87 
Virtualization:        VT-x 
L1d cache:             32K 
L1i cache:             32K 
L2 cache:              256K 
L3 cache:              6144K 
NUMA node0 CPU(s):     0-3

Note:

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# The other one
cat /proc/cpuinfo