Question for CS : Source players

[robbro]

All cs source players that have a ATI x800 or near that , what FPS do you normall get ingame with aa and af on?

Mine drops so much its annoying goes down a lot on x800 pro when theres a lot on the server just wondering if its my gcard or my comp.
server with 21 people on my fps went 30-50.. and compared to my friends 100fps constant with same comp specs im a bit concerned.

So if anyone has had the same experiance please reply thanks , Rob.