Half-Life 2

Half-Life 2 is not as hard a trial for modern graphics hardware as it used to be for previous-generation GPUs, so your using two Radeon X1900 in multi-GPU mode can hardly give you any advantage over the single Radeon X1900 XTX or over the Radeon X1800 XT CrossFire. The low texture fetch speed affects the results again.

In high resolutions, with extreme antialiasing modes enabled, the new multi-GPU system from ATI Technologies is faster than the older one, but the difference is not bigger than 10-11fps, the average frame rate being near 75-80fps.

Half-Life 2: Lost Coast

The tech demo Half-Life 2: Lost Coast abounds in advanced SM3.0/HDR special effects and is hard enough even for the Radeon X1900 XT CrossFire, at least when you use extreme full-screen antialiasing modes.

Regrettably, this super-powerful graphics subsystem is still not powerful enough to make resolutions other than 1024x768 playable. But if you compare the Radeon X1900 XT CrossFire with its predecessors and competitors, you may note its excellent scalability which again confirms our supposition of the hefty performance reserve the new implementation of ATI’s multi-GPU technology has for upcoming applications.