N64 in 1994: Silicon Graphics Tech Demo

Riding high on the success of the NES, SuperNES and GameBoy, Nintendo was finishing up development work on its next hardware offering: the Nintendo Ultra 64 (the Ultra was later dropped from the name). At the graphical heart of this system was a powerful (for the day) 64-bit, 62.5MHz GPU developed by Silicon Graphics (which was originally developed for, and rejected by, SEGA for its upcoming Saturn). Nintendo was definitely not shy in promoting the horsepower of this system before its launch, hoping to distract from the CD/cartridge debate that was raging between gamers at that time.

http://www.youtube.com/watch?v=eKlbx5niBu8

• Nintendo 64 at Wikipedia