The tables turn a little once Quake 4’s ultra quality mode is turned on. The GeForce 7800 GT is able to outperform the RADEON X1800 XL, while the GeForce 7800 GTX pulls to within 16% of the X1800 XT. We have a feeling that the X1800 XT’s 512MB of memory is helping it maintain its lead a little here. That would help explain the X1800 XL’s surprisingly slower showing in Quake 4’s ultra quality mode.

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