Video Card Stability Test is a program for testing the performance of a video card. During diagnostics, the application exposes the video processor to maximum loads, which makes it possible to determine the conditions in which the video card operates in the most stable way. Supported by VertexShader and PixelShader testing. As a graphic object, which is used in the testing of video cards, uses three-dimensional display of the rotating Earth. At the end of the test, the user will see a window with the results, where he can see the performance of the GPU and compare it with other graphics cards. A three-dimensional screen saver, which is an animated view of our planet from space, is supplied as a bonus.