Sega NAOMI 2

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Sega NAOMI 2
Manufacturer: Sega
Release Date RRP Code

The Sega NAOMI 2 is an arcade board developed by Sega and is a successor to Sega NAOMI hardware. It was originally released in 2000, and stands as a beefed up version of the NAOMI specification. It is also fully backwards compatible with its predecessor.

The NAOMI 2 is by and large a more powerful successor of the NAOMI, adding a secondary CPU and rasterizer GPU at higher clock rates, adding a new powerful T&L GPU, and increasing the graphics memory. This leads to games with much more polygons than a NAOMI game, rendered at much faster speeds, while the new T&L GPU adds advanced lighting and particle effects. It was also more affordable than the very expensive Sega Hikaru arcade system that preceded it.

As with the NAOMI, the NAOMI 2 was also available in GD-ROM and Satellite Terminal variants.

Technical Specifications

• Main CPU: 2× Hitachi SH-4 @ 400 MHz
  • Features: 2× 128-bit SIMD @ 400 MHz, 2× floating-point unit, graphic functions
  • Performance: 1440 MIPS and 5.6 GFLOPS
    • 40 million polygons/sec (20 million per CPU) with lighting
  • Note: With Elan used as geometry coprocessor, the SH-4's 128-bit SIMD matrix unit can be dedicated to game physics, artificial intelligence, collision detection, and overall game code
• Sound engine: Yamaha AICA Super Intelligent Sound Processor @ 67 MHz
  • Internal CPU: 32-bit ARM7 RISC CPU @ 45 MHz [1]
  • CPU performance: 17 MIPS
  • PCM/ADPCM: 16-bit depth, 48 kHz sampling rate (DVD quality), 128 channels [2]
  • Other features: DSP, sound synthesizer
• Main T&L geometry GPU coprocessor: VideoLogic Elan @ 100 MHz [3]
  • Lighting: Up to 16 light sources per polygon, ambient lighting, parallel lighting, point lighting, spotlight lighting
  • Vertex support: Combined dynamic and static model processing
  • Features: Reduces CPU load to 1/10th, multiple light type support (ambient, parallel, point, spot), hardware Z clipping, offscreen & backface culling [4]
  • Effects: Bump mapping, fog, alpha blending, MIP mapping, trilinear filtering, anti-aliasing, environment mapping, specular effects
• Rasterizer GPU: 2× NEC-VideoLogic PowerVR 2 (PVR2DC/CLX2) [5] @ 200 MHz
  • Bits: 64-bit per GPU
  • Texture mapping: Bump mapping, mipmapping, environment mapping, texture compression, multi-texturing, perspective correction, normal maping (Dot3 bump mapping)
  • Filtering: Point filtering, bilinear filtering, trilinear filtering, anisotropic filtering
  • Anti-aliasing: Super-sampling anti-aliasing (SSAA), full-scene anti-aliasing (FSAA)
  • Alpha blending: 256 levels of transparency, multi-pass blending, translucency sorting
  • Shading: Perspective-correct ARGB Gouraud shading, shadows
  • Rendering: ROP (render output unit), tiled rendering, 32-bit floating-point Z-buffering, 32-bit floating-point hidden surface removal, 256 fog effects, per-pixel table fog, per-pixel lighting
  • Polygons: Quad polygons, triangle polygons
  • GMV (general modifier volumes): Light beams, shadows, lasers, glowing suns
  • Geometric performance: 28 million textured polygons/sec (14 million per rasterizer GPU) with lighting, shadows and trilinear filtering
  • Fillrate:
    • Rendering: 2 billion pixels/sec (with transparent polygons) to over 6.4 billion pixels/sec (with opaque polygons)
    • Textures: 200 million texels/sec for rasterizer GPU
• Operating systems:
  • Native operating system
  • Custom Windows CE, with DirectX 6.0, Direct3D and OpenGL support
• Memory: Up to 368 MB
  • RAM: 168 MB
    • Main SDRAM: 32 MB (100 MHz) [6]
    • VRAM: 128 MB
      • PowerVR2 SDRAM: 64 MB (100 MHz)
      • Elan geometry VRAM: 32 MB
      • Model data VRAM: 32 MB [7]
    • Sound DRAM: 8 MB
    • Bandwidth: 6 GB/sec
  • ROM: Up to 200 MB (24 MB EPROM, 176 MB Mask ROM)
    • ROM access time: Under 100 nanoseconds
    • High-speed access allows ROM to effectively be used as RAM.
• Storage media: ROM board, GD-ROM drive
• Color depth: 32-bit ARGB, 16,777,216 colors (24-bit color) [8] with 8-bit (256 levels) alpha blending, YUV and RGB color spaces, color key overlay
• Display resolution: 31 kHz horizontal sync, 60 Hz refresh rate, VGA, progressive scan
  • Single monitor: 496×384 to 800×608 pixels
  • Dual monitor: 992×768 to 1600×608 pixels
• GFLOPS performance: 7.5 GFLOPS
• Textures per pass: 10
• Polygon performance:
  • 10 million textured polygons/sec with 6 light sources per polygon, shadows, trilinear filtering and other effects
  • 100 million polygons/sec raw
• Extensions: communication, 4-channel surround sound, PCI, MIDI, RS-232C
• Connection: JAMMA Video compliant

List of Games

NAOMI 2 Games

• Jet Squadron (prototype) (2000)
• Virtua Fighter 4 (2001)
  • Virtua Fighter 4: Evolution (2002)
  • Virtua Fighter 4 Final Tuned (2004)
• Virtua Striker 3 (2001)
• Wild Riders (2001)
• Club Kart: European Session (2002)
• King of Route 66 (2002)
• Sega Driving Simulator (2002)
• Soul Surfer (2002)
• Club Kart Prize (2003)

NAOMI 2 GD-ROM Games

• Beach Spikers (2001)
• Virtua Fighter 4 (2001)
  • Virtua Fighter 4: Evolution (2002)
  • Virtua Fighter 4 Evolution Ver. B (2003)
  • Virtua Fighter 4 Final Tuned (2004)
  • Virtua Fighter 4 Ver. B (2001)
  • Virtua Fighter 4 Ver. B (2001)
  • Virtua Fighter 4 Ver. C (2002)
• Virtua Striker 3 (2001)
• Initial D: Arcade Stage (2002)
• Initial D: Arcade Stage 2 (2003)
• Initial D: Version 3 (2004)

NAOMI 2 Satellite Terminal Games

• World Club Champion Football Serie A 2001-2002 (2002)
  • World Club Champion Football Serie A 2001-2002 Ver.2 (2003)
  • World Club Champion Football Serie A 2002-2003 (2003)
  • World Club Champion Football Serie A 2002-2003 Ver.2 (2004)
  • World Club Champion Football European Clubs 2004-2005 (2005)
  • World Club Champion Football European Clubs 2005-2006 (2006)
• Mobile Suit Gundam 0079 Card Builder (2005)
• Mobile Suit Gundam 0083 Card Builder (2007)

Sega arcade boards
Originating in arcades
77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 VIC Dual G80 Zaxxon VCO Object System 1 LaserDisc Appoooh Hang-On System 2 System 16 OutRun Gigas X Board Y Board System 24 System 18 System 32 Model 1 Model 2 H1 Board Model 3
Console-based hardware
84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 SG-1000 System E System C Mega-Tech System Mega Play Sega Titan Video NAOMI Hikaru NAOMI 2 Atomiswave System SP Chihiro Triforce
PC-based hardware
05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Lindbergh Europa-R RingEdge RingWide RingEdge 2 Nu Nu 1.1 Nu 2 ALLS