There were Voodoo2 SLI, but the time to make Voodoo Banshee was a long one. I think that if they were to release a Dual-Chip Banshee, they would have some low-price competition for the TNT.

Voodoo Banshee proved that even witout Multi-tex, it could even outrun some other cards. Also, the Dual-Banshee would have been the solution to enter one of their first 32Mb video card, and make a performance near to the Voodoo2 SLI, at a much improved quality. And the price would be near half of a V2 SLI. The board would have been a bit smaller than a V2, and with Multi-tex, before the V3. Which would surely be a major kick for Nvidia.