FurMark is a very intensive OpenGL benchmark that uses fur rendering algorithms to measure the performance of the graphics card. Fur rendering is especially adapted to overheat the GPU and that's why FurMark is also a perfect stability and stress test tool (also called GPU burner) for the graphics card.

The benchmark offers several options allowing the user to tweak the rendering: fullscreen / windowed mode, MSAA selection, window size, duration.

FurMark is a benchmark for OpenGL.

FurMark can do a stress test on your OpenGL capable Graphics adapter.
The software renders a furry ring in window- or fullscreen mode.
You can adjust the duration, mode and resolution, that will be used.
Also you can run FurMark in Benchmark mode.

A simple piece of software. But a burn-in test for OpenGL doesn't need to be complex.

Windows XP/VISTA/7