Gotcha. I also found this on the net for a quick test of the demo on an average FPS for your system. I finished up at 252.6
There are two ways to measure frame rate, and for best results you should use both. You can set up your HUD to display your frame rate in real time, and you can also use the demo that comes with Quake 3 to measure your average frame rate.
To get a real time display of your frame rate you use the cg_drawFPS variable. If you set this to '1' you will see your frame rate displayed in the upper right corner of the screen while playing. The handiest way to use this is to set up a key to turn it on or off. For example, the following console command will allow you to use the F12 key to turn the frame rate display on or off:
bind F12 toggle cg_drawFPS
Actually, I leave it on all the time. There are some moves, like rocket jumps or strafe jumps, which simply aren't going to work as well if your frame rate is too low. If you know your current real time FPS, you will know whether you can get away with these moves or not.
Your real time frame rate isn't as useful for comparing different game configurations. For that you need a repeatable way of measuring your average frame rate during play. Quake 3 includes a multiplayer demo which can be used to get a pretty good measurement of this. Follow these steps:
Start Quake 3.
Pull down the console with the tilde '~' key.
type the following two commands into the console:
demo demo001 for version 1.17 or less
- or -
demo demo127 for version 1.27
When the demo finishes, pull down the console again to see the results.