rovclock is a command line utility that allows users to control GPU and memory clock speed of their Radeon graphics cards. This utility will be very useful for owners of laptops because it will allow them to reduce core and memory clocks to save energy and extend the life of their laptop battery.
Warning: Use this utility at your own risk! We are not liable for any damage that this may cause to your system devices.
To install rovclock under Ubuntu 11.10/12.04 or any older versions of Ubuntu, open the terminal and run this command:
sudo apt-get install rovclock
rovclock -i (info)
-c [MHz] (set core clock)
-m [MHz] (set mem clock)
-x [kHz] (xtal frequency, default 2700)
-t [name]:[val] (set memory timings)
Before manipulating your ATI Radeon card frequency rates, run this command to get info about your graphics card:
sudo rovclock -i
If you want, for example, to change frequency rates of your GPU and memory, you can use this command:
sudo rovclock -c 200 -m 250
where -c 200 is the new frequency set for the GPU, and -m 250 is the new frequency set for the memory in MHz. So, change them to your needs. For more information about the use of this utility, you can refer to its manual by running this command from the terminal: