LinuxCommandLibrary

cpuid

dump detailed x86/x64 processor information

TLDR

Display information for all CPUs
$ cpuid
copy
Display information for current CPU only
$ cpuid -1
copy
Display raw hex information without decoding
$ cpuid -r
copy

SYNOPSIS

cpuid [options]

DESCRIPTION

cpuid dumps detailed CPU information by executing the CPUID instruction and decoding the results. It displays processor identification, feature flags, cache information, and other CPU details.
More detailed than /proc/cpuinfo, it shows low-level processor capabilities.

PARAMETERS

-1, --one-cpu

Display information for current CPU only
-r, --raw
Show raw hex values without decoding
-f, --file file
Read raw data from file

CAVEATS

x86/x86_64 only. Some information may be virtualized when running in VMs. Output interpretation requires understanding of CPU architecture.

SEE ALSO

lscpu(1), x86info(1)

> TERMINAL_GEAR

Curated for the Linux community

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