whats wrong wit my graphics card?

if you are playing an online game, your ping(and the servers ping) may effect your FPS. Also note that the graphics card will render what you cant see sometimes. so there could be a pile of people behind a wall setting of smoke grenades and other items lagging you(this is how those bastards make cheats).

There is also a chance that you are over just a bit and seeing a slightly more complex seen. Little things like transparent items and smoke can also cause lag. Last off your FPS can go down when you are page filing(windows is swapping ram and virtual memory)

i say just drop the graphics a notch if it bugs you allot.

What game is it btw

Hope this helps some

yes it depends on what resolution you are playing on. for instance if its on 1024x768 then to 800x600 you wont see much of a difference. but if you go up from like 1280x1024 to 1600x1200 then you should see a pretty good sized loss on some cards