Recommended reading

Strike Force: The new ATI Radeon 9800, 9600 and 9200 Series

Features
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4xFSAA + 8x Anisotropic Filtering, Continued

UT 2003 - 4x FSAA + 8x Aniso Performance

Thanks to its high performance in "Performance Mode," the FX regains some ground, but is unable to catch up to the Radeon 9800 PRO.