The Macintosh Performa 6400 was a mid-range personal computer that was part of Apple Computer's Macintosh Performa series of Macintosh computers. The two Performa variants were introduced in August 7 1996, while the Power Macintosh variant arrived two months later. They were discontinued in favor of the uniformly named Power Macintosh 6500 in August 1997, ending the Performa brand.