yeah, some cards have slower. if your just gonna spend that kind of money than get the Gainward GeForce4 PowerPack! Ultra/750 XP Golden Sample. it is the fastest geforce 4 you will find anywhere. it has vivo, and is the best overclocking card of the geforce4 series. or even better ocsystem.com videocards, with guaranteed overclocked speeds.
here is a listing of the cheapest prices for the best videocards on the market.
radeon 9700 pro including s/h for $322 at www.enpc.com
gainward geforce4 powerpack ultra/750 golden including s/h for $265 at www.gameve.com
and even better at www.ocsystem.com
you can get a ti4200 128mb that is clocked at 320 core and 610 memory which exceeds ti4600 speed for a much cheaper $173.
a ti4600 that is clocked at an extreme 315 core and 740 memory for $285.
both of the ocsystem cards have thermaltake copper cooler and heatsinks.
so obviously the best deal here will be the ti4200 128mb that is clocked at 320 and 610. that is essentially a faster than default geforce 4 ti4600 for about $100 dollar cheaper.