# cpufreq-info > A tool to show CPU frequency information. > More information: . - Show CPU frequency information for all CPUs: `cpufreq-info` - Show CPU frequency information for the specified CPU: `cpufreq-info -c {{cpu_number}}` - Show the allowed minimum and maximum CPU frequency: `cpufreq-info -l` - Show the current minimum and maximum CPU frequency and policy in table format: `cpufreq-info -o` - Show available CPU frequency policies: `cpufreq-info -g` - Show current CPU work frequency in a human-readable format, according to the cpufreq kernel module: `cpufreq-info -f -m` - Show current CPU work frequency in a human-readable format, by reading it from hardware (only available to root): `sudo cpufreq-info -w -m`