Performance in First-Person 3D Shooters

Doom III

At its regular frequencies the WinFast PX6600 GT goes abreast of the more powerful RADEON X800 XL, because Doom III  runs faster on NVIDIA’s cards using some peculiarities of the GeForce6 architecture. Then, the game uses the OpenGL API, and NVIDIA’s OpenGL driver is more perfect than ATI’s. The overclocked Leadtek is on the same level with the GeForce 6800, which has 12 pixel pipelines, but works at much lower frequencies.

The PX6600 GT feels a keen lack of the memory bandwidth in the “eye candy” mode and falls behind the RADEON X800 XL. Overclocking helps to close this gap almost. The 8-pipelined RADEON X700 XT/PRO cards from ATI have very low speeds in Doom III, so they are out of competition here.

The participating cards rank up in the same order on the d3dm4 map, too. The speeds are overall higher here, since there are no monsters on this multiplayer map.

The Leadtek WinFast PX6600 GT TDH is less successful here than on the Hellhole map, although it’s ahead of the RADEON X700 XT at its default frequencies. When overclocked, the Leadtek card almost overtakes the GeForce 6800 in 1600x1200, but cannot catch up with the faster devices.