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 was rendered in fullscreen mode with no AA enabled on both video cards.
ATI Radeon HD 4890 Benchmark Results:
NVIDIA GeForce GTX 275 Benchmark Results:
And for those that like data in pretty little charts:
Benchmark Results: According to the OpenGL benchmark Furmark, the GeForce GTX 275 is 21% faster than the Radeon HD 4890 when it comes to OpenGL fur rendering. I’m not sure how accurate the temperature monitor is for FurMark, but it showed the GeForce GTX 275 had a max GPU temperature that was significantly higher than Radeon HD 4890 for those that wonder about video card temperatures.