Namco System 21

The Namco System 21 "Polygonizer" is an arcade system board unveiled by Namco in 1988 with the game Winning Run. It was the first arcade board specifically designed for polygon processing. The hardware went through significant evolution throughout its lifespan until the last game, Cyber Sled, was released in 1993.

System 21 Specifications

The System 21 consists of four PCBs housed in a metal crate.

• Main CPU: 2x Motorola 68000 @ 12.288 MHz
• DSP (used for performing 3D math): 4x Texas Instruments TMS320C25 @ 24.576 MHz (Star Blade uses 5xTMS320C20 instead)
• Sound CPU: Motorola 6809 @ 3.072 MHz
• Sound Chip: Yamaha YM2151 @ 3.58 MHz
• MCU Hitachi HD63705 @ 2.048 MHz
• + Namco custom chips

List of System 21 Games

• Air Combat (1992)
• Cyber Sled (1993)
• Driver's Eyes (1990)
• Galaxian 3 (1990) and Attack of the Zolgear (1994)
• ShimDrive (1992)
• Solvalou (1991) - 3-D sequel to Xevious
• StarBlade (1991)
• Winning Run (1988)
• Winning Run 91 (1991)
• Winning Run Suzuka Grand Prix (1989)