This review is about a very advanced graphics card and we compare it with same-class solutions, so there is nothing wrong in all the cards reaching the performance ceiling in the “pure speed” mode on the Pier level. When full-screen antialiasing and anisotropic filtering are enabled, we can see that the ASUS Extreme N7800GTX TOP is somewhat slower than the RADEON X1800 XT starting from 1280x1024 resolution. Thanks to its Ring Bus architecture and 1.5GHz memory frequency the senior RADEON X1800 model increases the gap in the higher resolution. The ASUS card still beats the RADEON X1800 XL, though.
As we said in our review of the RADEON X1800’s gaming performance (for details see article called ATI RADEON X1800 XT and XL Performance: Crushing NVIDIA's 7800? ), NVIDIA’s solutions execute the version 3.0 shader code from Far Cry more effectively than the RADEON X1800 do. This statement is reconfirmed here: the ASUS Extreme N7800GTX TOP is a leader in the “pure speed” mode and is less than 5% slower than the RADEON X1800XT in the “eye candy” mode, despite the considerable difference in the GPU and memory frequencies of the two graphics cards.