Geforce 3 Ti 500 is extremely greater in performance than the Geforce 4 MX as Krux explained in more detail Geforce 4 MX engines are built off the Geforce 2 stuff and the Geforce 3 editions are completely newer generation technology
at the moment 41.09 Detonator is the newest offical update.. havent had any problems with it at all
Depends .. Geforce4MX has a newer generation technology as Alex_is_Axel said but I like your question about driver .. very interesting cause nvidia improves it's latest drivers especially for the latest chips' so I quess you'll find the answer alone ..
seeing as the 9100 is basically the same card as the 8500 series (LE actually) with fullstream done in hardware and renamed so as to better represent its performance compared to the 9000 series cards... it would appear as though this can;t be the case... in terms of raw performance the 8500le was a notch above the gf3 series (the gf3 ti 500 was released to compete with the 8500 series from ati and did well till ati's drivers matured)
therefore knowing what we do about architecture and what not... no... I don't think the gf3 series cards outperform the 8500le/9100 series of cards from ati...
the only reason you would want the gf4mx is for nview junk. you can display on two monitors and a tv simultaneously... have them all clone (showing the same thing) or span (desktop spread across all two or three). the gf4 line let's you do this, as long as the card has dual-head support.
but i've also heard some say gf3's let you do this, too?
but if none of that really matters to you, get the gf3ti500, of course. or look at upgrading to the gf4 ti4200, if possible.
oh, and yes, upgrading the video card and lowering the processor a bit (133mhz lower) is a good idea. in the end, games will be smoother and look better (dx8 support).
Ep, glad to see you come back and tidy up...did want to ask a one day favor, I want to enhance my resume , was hoping you could make me administrator for a day, if so, take me right off since I won't be here to do anything, and don't know the slightest about the board, but it would be nice putting "served administrator osnn", if can do, THANKS