Graphics cards and First Person shooter performance

[turboxchaz]

Can anybody agree with my noob-y speculation that the strength of a graphics card (e.g. clock speed, memory, etc) has something to do with the speed of the camera movement in fps games?
I am using my integrated graphics card (ati radeon 4200 on ASUS 785G chipset) and whenever I play L4D/2, the speed in which my camera moves is like 30 milliseconds slower than when I played with my 8800GT.
Obviously I don't know what core clocks and memory on a graphics card is nor does, (except the more, the better) so I'm not sure if what I've assumed is correct.

 

[GhOsT1321]

From what I have heard (particularly from other members at T-F) is that Nvidia is generally more compatible with more games and Nvidia cards usually play games a bit smoother.

Also, the 8800GT is way more powerful than your IGP radeon 4200