Naomi is one of the most successful arcade platforms of all time right up there with the Neo Geo.  Like SNK's Neo Geo, Sega also licensed out their hardware to 3rd party developers which gave them a powerful (at the time) easy to program platform to produce arcade games at a cost efficient level.  Many 3rd party developers such as Tecmo, Sammy, Treasure, Jaleco, G.Rev and Milestone are just a few of the many talented developers that produced games for the Naomi platform.  However, none were as active as Capcom who produced most of their biggest arcade hits of the late 90's on the Naomi.  Games such as Marvel Vs Street Fighter 2, Power Stone series and Bio Hazard Code Veronica Gun Survival.

As you may know, Sega's last console, the Dreamcast was based upon the Naomi hardware which although only having half the memory of the Naomi still resulted in more arcade perfect ports coming to the home than any other system before it.

Naomi Hardware Specifications

CPU : Hitachi SH-4 32-bit RISC CPU (200 MHz 360 MIPS / 1.4 GFLOPS)
Graphic Engine : PowerVR 2 (PVR2DC)
Sound Engine : ARM7 Yamaha AICA 45 MHZ (with internal 32-bit RISC CPU, 64 channel ADPCM)
Main Ram : 32 megs
Main Memory : 32 MByte
Graphic Memory : 16 MByte
Sound Memory : 8 MByte
Media : ROM Board (maximum size of 172MBytes) / GD-Rom
Simultaneous Number of Colors : Approx. 16,770,000 (24bits)
Polygons : 2.5 Million per second
Rendering Speed : 500 M pixel/sec
Additional Features : Bump Mapping, Fog, Alpha-Bending (transparency), Mip Mapping (polygon-texture auto switch), Tri-Linear Filtering, Anti-Aliasing, Environment Mapping, and Specular Effect.

Below is my personal collection of Naomi hardware and Software.  Click the image or game title for more information.

Title - Naomi 1 Hardware

Developer - Sega

Title - Akatsuki Blitzkampf Ausf Achse

Developer - Subtle Style

Title - Cosmic Smash

Developer - Sega

Title - Dead or Alive 2 Millennium

Developer - Tecmo

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Title - Guilty Gear X

Developer - Sammy / ARC System Works

Title - Mobile Suit Gundam - Renpou vs Zeon

Developer - Capcom

Title - Slashout

Developer - Sega

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