|CPU : 2 x Hitachi SH-4 128 bit RISC CPU with graphic functions @ 200 MHz 360 MIPS / 1.4 GFLOPS
Graphic Engine : Sega Custom 3D
Sound Engine : 2x ARM7 Yamaha AICA @ 45 MHz with internal 32-bit RISC CPU, 64 channel ADPCM
Main Memory : 64 Mbytes
Graphic Memory : 28 Mbytes
Sound Memory : 8 Mbytes
Media : ROM Board (max 352 MBytes)
Simultaneous Number of Colors : Approx. 16,770,000 (24bits)
Resolution : 24 KHz, 496x384, 31 KHz 640x480
Polygons : 2 Million polys a sec
Shading : Phong Shading
Lighting : Horizontal, Spot, 1024 lights per scene, 4 lights per polygon, 8 window surfaces.
Effects : (at least) Phong Shading, Fog, Depth Queueing, Stencil, Shadow, Motion blur
Others Capabilties : Bitmap Layer x 2, Calender, Dual Monitor (24 kHz)
Extensions : communication, 4 channel audio, PCI, MIDI, RS-232C
Connection : Jamma Video complient
Notes : This board was totally custom and very expensive to produce, it was only really designed for one game (Brave Fire Fighters) as it could do complex fire/water graphics.
There were eventually only 6 games made for this system beforce it was dropped in favour of the much cheaper Naomi 2.
It was also the first arcade board to be able to do phong shading.
Pictures (large) : Main PCB - Sound Board - Comm Board - Rom Board Left Side - Rom Board Right Side - Main Board Up Left - Main Board Up Right - Main Board Down Left - Main Board Down Right - Custom A - Custom B