Sega Model 3

From Sega Retro

Model3 fullboard.jpg
Sega Model 3
Manufacturer: Sega, Lockheed Martin
Release Date RRP Code

The Sega Model 3 is an arcade platform produced by Sega in partnership with Lockheed Martin. It is a successor to the Sega Model 2 platform, and was released in 1996.

The Model 3 hardware is very different to the Model 1 and Model 2 boards which preceeded it. It was desinged with one purpose in mind - to push as many textured polygons as possible for as least money as possible. Upon release, the Model 3 board was more powerful than any other arcade platform on the market, as well as any home console or computer.

History

The Model 3 board went through a series of delays which frustrated Sega. Despite success with the previous generations of arcade hardware, Lockheed Martin, mainly responsible for the graphics processors, were unable to finalise the specifications of the board until mid-way into 1996 - Sega had planned to release the board in late 1995 along with three games, one of which, Indy 500, was reportedly downgraded to Model 2 hardware thanks to the troubles. Virtua Fighter 3 and then Scud Race debuted as the first two Model 3 games, and the board was officially supported until 1999 to make room for the Sega NAOMI and its successors.

The Model 3 went through a number of revisions (steps) in which improvements were made the system and board architecture was changed. Though there was much talk of Model 3 games being ported to the Sega Saturn, all home ports of Model 3 games were seen on the Sega Dreamcast, including the likes of Sega Rally 2, Virtua Fighter 3tb, Virtual-On Oratorio Tangram and Virtua Striker 2.

From the early 1970s, arcades had been at the forefront of graphical technology in video games. The Model 3 hardware as well as competitors from this era were also leading the industry from a graphical perspective at the time, compared to PCs which were still producing Model 2 quality graphics in 1998,[1] but the gap began to slowly narrow after that, as PCs would begin to benefit from hardware accelerated graphics towards the end of the decade. Beginning with the Sega Dreamcast in 1998, consoles would slowly become the basis for arcade systems, rather than the reverse as it had been up until this point. The last proprietary Sega arcade systems would be the Sega Hikaru and Sega NAOMI 2, after which PCs would overtake arcade systems as the forefront of graphical technology. Today, arcade games are built primarily around controls and the experience one gets from a game as opposed to graphical potential. Complex motion cabinets, and large, unique forms of control unsuitable for households is what drives the arcade industry in the present day.

Specifications

  • Main CPU: 32bits RISC PowerPC 603 66Mhz
  • Graphics chip: 2 x Lockheed Martin Real3D/PRO-1000
  • Sound CPU: 16bits 68EC000 11.3Mhz
  • Sound chip: Yamaha SCSP/YMF-292F/"LAKE" FH1 128-step DSP x 2, MIDI interface, 16 bits 64 voices 4 channel, maximum of 16.5 Mbytes ROM, 64 PCM channels
  • Audio RAM: 1meg (8 megabits, 512K per SCSP chip)
  • Main memory: 8 Mbytes 66mhz Ram, graphic ROM maximum of 64 Mbytes, backup RAM 64 Kbytes
  • Video resolution: 24KHz 496(H)x384(V) one or two plane
  • Scroll Window: two plane (24KHz/two plane mode), 16 colors/32,768 1024 palette x 2 bank, 256/32,768 64 palette x 2 bank
  • Geometrizer: 1,000,100 polygons/s for square polys, 2,000,200 for triangle polys
  • Renderer: 60,000,000 pixels/s
  • Video: Full color texture mapping, tri-linear interpolation, micro texture, shading high-specula gouraud shading , fix shading, flat shading, texture & edge multi layered anti-aliasing, lighting effects, parallel light, 4 spot light, pin spot light, special effect zoning-fog, 32 levels of translucency.
  • Board composition: CPU + VIDEO + ROM boards
  • Others: 10mbs connection, calendar IC

Hardware Images

List of Games


Sega arcade boards
Originating in arcades









Console-based hardware








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PC-based hardware








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