TNT2 performance is very poor with slow CPUs
and doesn't support natively Glide.
Voodoo 3 3000 is superb for slow CPUs like
AMD's K6II (V3 drivers have an excelent
3DNow support).
So, if you have a very fast Athlon or PIII,
go for the TNT2, else, the best choice is
the V3.
GeForce should be a good solution for slow
CPUs also, but it is very expensive (DDR).