There are some problems with the GeForce 8800 GTX in X3: Reunion , too, although this is not an OpenGL application. The new card has a high enough average speed, but occasionally slows down to 10-15fps. This is yet another indication that the driver for the new GeForce series still needs improvement. It is possible that this fluctuating performance is due to errors in the operation of the scheduler that is responsible for allotting the shader processors to execute pixel and vertex shaders.
We can see the same problem in 8x MSAA mode, although the min speed is somewhat higher here and the average speed is almost as high as that of the Radeon X1950 XTX CrossFire in high resolutions.
Notwithstanding the impressive potential the GeForce 8800 GTX has shown in many other games, it is the Radeon X1950 XTX CrossFire that suits best for playing X3 with the highest possible FSAA. It is due to those sudden fluctuations of performance from 44-55fps to 12-18fps. The speed of the ATI solution doesn’t vary so wildly and it ensures a more comfortable and smoother gameplay.