RivaTuner is a program which improves the work of Nvidia and ATI video cards and their overclocking.
RivaTuner features
Tuning Direct3D can improve the image and performance without much risk, the program will change everything you need. If you're not familiar with all the options, you can rely on one-click context help. RivaTuner supports graphics cards from all older NVIDIA Riva TNT models to the latest GeForce.
In addition to NVIDIA hardware support the program also supports graphics cards based on modern ATI graphics processors. If the video card allows, you can change the card cooling settings, paying attention to the operating mode (2D or 3D). The program also has extensive system configuration options at the Direct3D / OpenGL driver level, the profile system allows users to configure each application of the program individually.