I have bought a Nvidia 6200 128mb Video Card, and realised that it is runnning at 64bit instead of 128bit (like most of the other 6200 card). Of course i am quite unhappy about this
. So, i just wanna know that is there a "big" difference between 64bit and 128bit in terms of performance.
And, if compare with the ATI 9550 128mb (128bit) video card, which is better?

And, if compare with the ATI 9550 128mb (128bit) video card, which is better?