 It supports nVidia GPUs from the Riva TNT to the GeForce 700 Series, and also has limited support for the ATI/AMD Radeon series of video cards from the Radeon 8500 and above.For users of supported GPUs, rivatuner is one of the most commonly used software tools for overclocking.It allows the user to perform driver-level Direct3D and OpenGL tweaking through a graphical interface and also enables low-level hardware monitoring.