| TheSource said: In November, 1990, Nintendo launched the 16-bit Super Famicom system. Within five months, Super Famicom system sales have exceeded 1.4 million units and claims a majority of the 16-bit market in Japan. |
Mega Drive launched two years before Super Famicom (October 29 1988), but Super Famicom overtook it within five months. I'm surprised Mega Drive hadn't even sold 1.4m after 2 1/2 years in Japan.
PC Engine launched October 30 1987, but was technically 8-bit, so was probably still ahead of Super Famicom (it went on to sell around 7.5m in Japan).







