ATI Radeon X1800 XT CrossFire Evaluation

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Doom 3 v1.3

Performance Comparisons with Doom 3

Doom 3
id Software's games have long been pushing the limits of 3D graphics. Quake, Quake 2, and Quake 3 were all instrumental in the success of 3D accelerators on the PC. Now, many years later, with virtually every new desktop computer shipping with some sort of 3D accelerator, id is at it again with the visually stunning Doom 3. Like most of id's previous titles, Doom 3 is an OpenGL game that uses extremely high-detailed textures and a ton of dynamic lighting and shadows. We ran this batch of Doom 3 single player benchmarks using a custom demo with the game set to its "High-Quality" mode, at resolutions of 1,280 x 1,024 and 1,600 x 1,200 without anti-aliasing enabled and then again with 4X AA and 8X aniso enabled simultaneously.



Although ATI's recent driver updates have improved OpenGL performance dramatically, their cards still fall prey to NVIDIA in our custom Doom 3 benchmark. Both GeForce 7800 GTX SLI configurations, whether equipped with 256MB or faster clocked 512MB cards, handily outpaced both CrossFire rigs by significant margins. If we focus on performance when anti-aliasing and anisotropic filtering were enabled, the GeForce 7800 SLI systems outperformed either CrossFire configuration by margins ranging from about 20 FPS all the way up to about 50 FPS. Without any additional pixel processing, these margins are even bigger. So, while the 90+ FPS the pair of Radeon X1800 XTs running in CrossFire mode is nothing to sneeze at, it's just not enough to challenge NVIDIA's best within the Doom 3 environment.

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