Sega Model 1

From Sega Retro

Model1 board.jpg

Fast Facts on the Sega Model 1

Made by: Sega

Release Date RRP Code
Arcade World 1992  ?

The Sega Model 1 is an arcade system board released by Sega in 1992. It is the successor to the Sega System 32 arcade boards, and was succeeded by the Sega Model 2 series. During development, Sega went to General Electric Aerospace (now Lockheed Martin) for assistance with creating 3D hardware, however as the end result was so expensive, only a few games were developed for the platform.

Originally the Model 1 was simply known as the CG Board, but was retroactively given the Model 1 name after work on the Model 2 began.


  • Main CPU: NEC V60 @ 16 MHz
  • Graphics Coprocessor: Fujitsu TGP MB86233 FPU
  • Sound CPU: Motorola 68000 @ 10 MHz
  • Sound Chip: 2 x Sega 315-5560 Custom 28 channel PCM
  • Sound Timer: Yamaha YM3834 @ 8 MHz
  • Display Resolution: 496 x 384
  • Color Depth: 16-bit
  • Graphical Capabilities: Flat shading, diffuse reflection, specular reflection, 2 layers of background scrolling, alpha blending
  • Geometric performance: 180,000 polygons/sec.

List of Sega Model 1 Games


Sega Arcade Boards
Originating in Arcades
8080/Z80-based Sega Blockade hardware | Sega VIC Dual | Sega G80 | VCO Object | Sega Zaxxon hardware | Sega Laserdisc hardware | Sega System 1 | Sega Appoooh hardware | Sega System 2 | Sega System E | Sega Gigas hardware | Sega Sharp Shooter hardware | Sega Space Position hardware
Sega Shooting Zone System (MAME alias for Sega Sharp Shooter Hardware; which name is correct?)
Custom Z80 boards (TODO the only one left is Bank Panic which needs to be handled differently; it's by Sanritsu and runs on the same hardware as Combat Hawk)
68000-based Pre-System 16 hardware | Sega Hang-On hardware | Sega OutRun hardware | Sega System 16 | Sega X Board | Sega System 24 | Sega Y Board | Sega System 18
NEC V60/V70-based Sega System 32 | Sega Model 1
Intel i960-based Sega Model 2
PowerPC-based Sega Model 3
SuperH-based Sega Hikaru
Based on Home Hardware
SG-1000-based SG-1000-based Arcade Hardware
Mega Drive-based Mega-Tech | Sega System C/C2 | Mega Play | High Seas Havoc special board
Saturn-based Sega Titan Video (ST-V)
Dreamcast-based Sega NAOMI | Sega NAOMI 2 | Sega Aurora | Sammy Atomiswave
Xbox-based Sega Chihiro
GameCube-based Triforce
PC-based Sega Lindbergh | Sega Europa-R | Sega RingEdge | Sega RingWide | Sega RingEdge 2 | Nu