I made the following experiences with different ATI and nvidia graphic cards:
Installing a quite old GeForce-2 MX-400 everything runs quite OK. It runs nativeley with the included nv-drivers and there is no problem with installing the nvidia-drivers provided by livna-repo.
glxgears: 1500 fps (5500 with closed window)
blender: 187 ops/s in drawing benchmark
Another quite old graphic-card, ATI Radeon 7500, shows even better results and also has no problems with installing any drivers ...just because it isn't supported by ATI's fglrx and it uses the radeon-driver included in FC5. No additional installation at all.
glxgears: 1800 fps (6800 with closed window)
blender: 259 ops/s in drawing benchmark
Now I tested those "better" cards: ATI Radeon 9200, nvidia GeForce 6600. The results don't satisfy me at all, for they are much slower:
glxgears: 130 fps (300 with closed window)
blender: 28 ops/s in drawing benchmark
This ist quite ugly! fglrx is loaded and installed properly, I also let the aticonfig do the "--initial" configuration of my xorg.conf (SE-Linux is disabled on my system). The radeon-driver also shows similar slow framerates.
Even worse the nvidia GeForce 6600:
no glxgears and no blender benchmark just because the glx drivers don't do their jobs. And this card is not able to start X with the "normal" nv-driver. You have to install the kmod-nvidia and glx-driver from livna before getting any graphical content on your monitor.
I really did a lot of forum-search and try-and-error-jobs, edited the xorg.conf and disabled SE-Linux. Am I too stupid to install a better graphic-card and make it working better than my good old Radeon 7500?
Does anybody here get higher framerates or blender-drawing-benchmarks than mentioned above with any of those latest ATI or nvidia cards? For me the power of my Radeon 7500 is satisfying ...just thought of getting even better with new cards ;-)
Any hints or suggestions?