# radeontop > Show utilization of AMD GPUs. > May require root privileges depending on your system. > More information: . - Show the utilization of the default AMD GPU: `radeontop` - Enable colored output: `radeontop --color` - Select a specific GPU (the bus number is the first number in the output of `lspci`): `radeontop --bus {{bus_number}}` - Specify the display refresh rate (higher means more GPU overhead): `radeontop --ticks {{samples_per_second}}`