The Namco System 22 is the successor to the Namco System 21 arcade system board. It debuted in 1992 with Sim Drive in Japan, followed by a worldwide debut in 1993 with Ridge Racer. The System 22 was designed by Namco with assistance from graphics & simulation company Evans & Sutherland. Graphical features include texture mapping, Gouraud shading, transparency effects, and depth cueing, thanks to the Evans & Sutherland 'TR3' chip/chipset, which stands for: Texture Mapping, Real-Time, Real-Visual, Rendering System. The main CPU provides a scene description to the TR3 graphics processing unit and a bank of DSP chips which perform 3D calculations. A variant of the system, called the Super System 22, was released in 1995. The hardware was largely similar to the System 22, but with a slightly higher polygon rate and more special effects possible. System 22 Specifications Main CPU: Motorola 68020 32-bit @ 24.576 MHz DSP: 2x Texas Instruments TMS32025 @ 49.152 MHz (exact number of DSPs may vary) GPU: Evans & Sutherland TR3 (Texture Mapping, Real-Time, Real-Visual, Rendering System) Features: Texture mapping, Gouraud shading, transparency effects, depth cueing, 16.7 million colors, 240,000 polygons/second Sound CPU: Mitsubishi M37702 (System 22 Games) or M37710 (Super System 22 Games) @ 16.384 MHz Sound Chip: Namco C352 (32 voices, 4 channels @ 16-bit, support for 8-bit linear or μ-law PCM samples) + Namco Custom Chips List of System 22 / Super System 22 Games Sim Drive (1992, limited release) Ridge Racer (1993) Ace Driver (1994) Alpine Racer (1994) Cyber Commando (1994) Ridge Racer 2 (1994) Ace Driver: Victory Lap (1995) Air Combat 22 (1995) Cyber Cycles (1995) Dirt Dash (1995) Rave Racer (1995) Time Crisis (1995) Tokyo Wars (1996) Alpine Racer 2 (1996) Alpine Surfer (1996) Aqua Jet (1996) Armadillo Racing (1996) Prop Cycle (1996) References External links System 22 at System16 - The Arcade Museum Namco arcade system boards