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Doom III

GeForce 7900 quad SLI manages to reach the performance level of GeForce 7900 GTX SLI in 1600x1200. In all previous resolutions the quad-processor Nvidia platform was lagging behind the dual-processor one.

Quad SLI starts showing its advantages in FSAA 8x + AF 16x mode. Here two GeForce 7900 GX2 working together outpace a pair of GeForce 7900 GTX also working in SLI mode. In 1600x1200 the performance gain reaches about 15%.

This performance advantage grows up to 70% when we use more advanced FSAA mode, however, the overall performance level drop below the acceptable gaming performance for first-person 3D shooters. Radeon X1900 XT CrossFire falls only 15% behind the GeForce 7900 quad SLI in 1600x1200.

Unfortunately, we couldn’t obtain any acceptable results in SLI AA 32x mode, just like in Chronicles of Riddick game we have already discussed. Even the fact that Doom III engine favors Nvidia architecture didn’t help here. The average performance of our today’s hero made only 37fps in 1280x1024.

 
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