I used to have an Geforce 4 MX 440. And 2 days ago I upgraded to a Geforce FX 5700 LE. AND IM LOVING IT!!! I noticed a HUGE difference when playing Call Of Duty. I can run the game online with every setting on high and extra without a single peice of lag.
With the GF4 400. I ran the lowest settings and still had problems here and there. Its pretty sick.
I noticed though.. My old GF4 ran Halo differently then this new card. I liked the old way. But oh well.