Add this line to the config files of both
seta cg_drawfps "1"
This will display the frame rates for both. If you are in Quake 3 and wish to do a test. Load Quake 3 and push the tilde key ~ and type in.
timedemo 1
Run the demo file and when it finishes hit the tilde key again and it will show the FPS.
Have fun...