Performance in Simulators
The Radeon X1900 have no chance against the GeForce 7800/7900 here since the engine of this game is optimized for Nvidia’s architecture. Anyway, the R580-based cards, including the PowerColor X1900 XT, run the game at a high speed in resolutions up to 1280x1024 at the “eye candy” settings. Unfortunately, they cannot render the water surface with the maximum quality because the Radeon X1000 architecture doesn’t support vertex texturing.
X3: Reunion clearly prefers graphics cards on chips from ATI Technologies. Even the Radeon X1800 XT with its 16 pixel processor is almost as fast as the GeForce 7900 GTX and even faster than it in low resolutions. The non-overclocked PowerColor X1900 XT turns in one of the best results, after the Radeon X1900 XTX.
The average performance of the Radeon X1900 cards is highly satisfactory. The frame rate is never below 40fps notwithstanding the enabled full-screen antialiasing: you are guaranteed a smooth space flight without any slowdowns.