6 Manufacturer : SNK Corporation Year of Release : 1990 Units sold : 1 million Best-selling game : The King of Fighters '95 CPU : Motorola 68000 @ 12MHz, Zilog Z80A @ 4MHz RAM : 64KB RAM Audio Ram : 2KB Video RAM : 84KB Display : 320×224 resolution, 4096 on-screen colors out of a palette of 65536 Sound chip : Yamaha YM2610