I still have my Hercules GeForce GTSII, nice looking card, it replaced my Voodoo 3 2000.
I think 3DFX were compromised by sticking to 16bit colour more than anything else.
Oh yea, thats why my Rage Fury was slower than the Voodo 3, because it used 32 bit color lol!
It was cheaper too, if I remember correctly it was £89.99 for the 32 Mb Rage Fury, £119 for the 16 Mb voodoo 3, and maybe £200 for the 32 Mb Nvidia Riva TNT2?
3dfx were still doing great while sticking to 16 bit colour, they went out of business when they didnt create a T+L engine on their Voodoo 5000 range and fell far behind the Geforce 2 and Radeon video cards. The cards were just as expensive as a Geforce 2 GT, while no where near on par with their complete lack of a dedicated GPU.
Nvidia pretty much put every other brand out of business back then. Only ATI remained competitive and produced cards on par with what Nvidia were making - The Geforce 1 was rivaled by the Rage Fury Maxx, The Geforce 2 by the Radeon DDR, Geforce 3 by the Radeon 8500, and then the Geforce 4 came out and was a very strong card for some time ......
.... Until the legendary Ati Radeon 9700 pro was released. Then ATI became a major powerhouse as well.