Was this test done using nVidia's AGP driver or the system's? For me, using nVidia's built-in AGP driver results in a considerable performance boost (almost on the level of disabling the compositing module).
It's set in xorg.conf's video card section, see the documentation for more information.
It's set in xorg.conf's video card section, see the documentation for more information.
Code:
Option "NvAGP" "2"
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