After yesterday's look at the Doom 3 performance with the X1800XT, today was time to fire up Return to Castle Wolfenstein: Enemy Territory (v2.60) for some additional fglrx performance benchmarks. Tests were done at different resolutions with the Radeon X1800XT 256MB using a Railgun map time-demo. Below are the visual settings used, except for the changing resolutions.

Below this are the average frame-rate results from four resolutions in Windowed mode on the Big Desktop with Enemy Territory.
=============================== Enemy Territory v2.60 (Railgun) Average FPS =============================== 800 x 600: 71.2 1024 x 768: 71.8 1152 x 864: 71.7 1280 x 1024: 70.8
