Difference between revisions of "Sega NAOMI 2"

From Sega Retro
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** Effects: Bump mapping, fog, alpha blending, MIP mapping, trilinear filtering, anti-aliasing, [[wikipedia:Reflection mapping|environment mapping]], specular effects {{ref|http://ign.com/articles/2000/09/21/jamma-2000-naomi-2-revealed}}{{fileref|NAOMI 1998 Press Release JP.pdf}}
 
** Effects: Bump mapping, fog, alpha blending, MIP mapping, trilinear filtering, anti-aliasing, [[wikipedia:Reflection mapping|environment mapping]], specular effects {{ref|http://ign.com/articles/2000/09/21/jamma-2000-naomi-2-revealed}}{{fileref|NAOMI 1998 Press Release JP.pdf}}
 
** Defails: See ''[[Sega NAOMI#Technical Specifications|NAOMI Specifications]]'' and ''[[Sega Dreamcast#Technical Specifications|Dreamcast Specifications]]'' for more details on PowerVR2 graphics system.
 
** Defails: See ''[[Sega NAOMI#Technical Specifications|NAOMI Specifications]]'' and ''[[Sega Dreamcast#Technical Specifications|Dreamcast Specifications]]'' for more details on PowerVR2 graphics system.
 +
* Color depth: 32‑bit ARGB,{{ref|http://segatech.com/technical/overview/index.html}} 16,777,216 colors (24‑bit color) with 8‑bit (256 levels) alpha blending,{{ref|http://www.segatech.com/arcade/naomi2/index.html}} YUV and RGB color spaces, color key overlay {{ref|http://web.archive.org/web/20070811102018/http://www3.sharkyextreme.com/hardware/reviews/video/neon250/2.shtml}}
 +
* Display resolution: 31 kHz horizontal sync, 60 Hz refresh rate, [[Dreamcast VGA Adapter|VGA]],{{ref|http://wiki.arcadeotaku.com/w/Sega_Naomi_Universal}} progressive scan
 +
** Single monitor: 496×384 to 800×608 pixels {{ref|http://cadcdev.sourceforge.net/docs/kos-current/video_8h_source.html}}
 +
** Dual monitor: 992×768 to 1600×608 pixels
 
* Geometric performance:
 
* Geometric performance:
 
** 100 million polygons/sec, raw performance {{ref|http://www.ign.com/boards/threads/noami-2-future.6157195/}}
 
** 100 million polygons/sec, raw performance {{ref|http://www.ign.com/boards/threads/noami-2-future.6157195/}}
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** Texture fillrate: 2 billion [[wikipedia:Texel (graphics)|texels]]/sec
 
** Texture fillrate: 2 billion [[wikipedia:Texel (graphics)|texels]]/sec
 
** Textures per pass: 10 {{ref|http://www.ign.com/boards/threads/noami-2-future.6157195/}}
 
** Textures per pass: 10 {{ref|http://www.ign.com/boards/threads/noami-2-future.6157195/}}
−
* Color depth: 32‑bit ARGB,{{ref|http://segatech.com/technical/overview/index.html}} 16,777,216 colors (24‑bit color) with 8‑bit (256 levels) alpha blending,{{ref|http://www.segatech.com/arcade/naomi2/index.html}} YUV and RGB color spaces, color key overlay {{ref|http://web.archive.org/web/20070811102018/http://www3.sharkyextreme.com/hardware/reviews/video/neon250/2.shtml}}
 
−
* Display resolution: 31 kHz horizontal sync, 60 Hz refresh rate, [[Dreamcast VGA Adapter|VGA]],{{ref|http://wiki.arcadeotaku.com/w/Sega_Naomi_Universal}} progressive scan
 
−
** Single monitor: 496×384 to 800×608 pixels {{ref|http://cadcdev.sourceforge.net/docs/kos-current/video_8h_source.html}}
 
−
** Dual monitor: 992×768 to 1600×608 pixels
 
 
}}
 
}}
  

Revision as of 17:46, 6 December 2015

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NAOMI2.jpg
Sega NAOMI 2
Manufacturer: Sega
Variants: Sega NAOMI 2 GD-ROM, Sega NAOMI 2 Satellite Terminal
Add-ons: GD-ROM
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. Since it uses similar NAOMI architecture (but significantly beefed up), it is also fully backwards compatible with its predecessor.

The NAOMI 2 is significantly more powerful than the NAOMI, including a dual CPU setup, new T&L GPU, dual rasterizer GPU, increased memory, and faster clock rates and bandwidth. 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.

Development

VideoLogic's Elan, the T&L geometry GPU coprocessor used in the NAOMI 2, had been in development since 1998, when the original NAOMI arcade system and Dreamcast console launched. [1]

Technical Specifications

NAOMI 2 Specifications

Graphics

  • Main T&L geometry coprocessor GPU: VideoLogic Elan
  • Rasterizer GPU: 2× NEC-VideoLogic PowerVR 2 (PVR2DC/CLX2/Holly) @ 200 MHz [2]
  • Color depth: 32‑bit ARGB,[5] 16,777,216 colors (24‑bit color) with 8‑bit (256 levels) alpha blending,[3] YUV and RGB color spaces, color key overlay [12]
  • Display resolution: 31 kHz horizontal sync, 60 Hz refresh rate, VGA,[13] progressive scan
    • Single monitor: 496×384 to 800×608 pixels [14]
    • Dual monitor: 992×768 to 1600×608 pixels
  • Geometric performance:
    • 100 million polygons/sec, raw performance [2]
    • 28 million textured polygons/sec, with lighting, shadows and trilinear filtering
    • 20 million textured polygons/sec, with lighting, shadows, trilinear filtering and anti-aliasing
    • 10 million textured polygons/sec, with 6 light sources per polygon,[3] shadows, trilinear filtering and anti-aliasing
  • Rendering fillrate:
    • 6.4 billion pixels/sec, for opaque polygons
    • 2 billion pixels/sec, for transparent polygons
    • 2-6 billion pixels/sec, depending on opacity/translucency of polygons
  • Texturing performance:
    • Texture fillrate: 2 billion texels/sec
    • Textures per pass: 10 [2]

Memory

  • Overall memory: 304–584 MB
  • System RAM: 136 MB SDRAM [6]
    • Main RAM: 32 MB
    • VRAM: 96 MB
      • Elan: 32 MB (geometry/model data)
      • PowerVR2: 64 MB (2× 32 MB)
    • Sound RAM: 8 MB
  • L2 cache: 256 KB [2]
  • System ROM: 2048.25 KB (2 MB BIOS EPROM, 256 bytes EEPROM) [6]
  • Cartridge ROM: 168–448 MB
    • 2000 format: 168–280 MB (24 MB EPROM,[15] 144–256 MB FlashROM/MROM)
    • 2005 format: Up to 448 MB (128–448 MB FlashROM, 0–40 MB EPROM, 128 KB Flash PROM)[16]

Bandwidth

  • System RAM bandwidth: 6 GB/sec [6]
    • Main RAM: 1.6 GB/sec (2× 64‑bit, 100 MHz) [17]
    • VRAM: 4.133 GB/sec
      • Elan: 2.133 GB/sec (128‑bit, 133.3 MHz) [8]
      • PowerVR2: 2 GB/sec (2× 64‑bit, 125 MHz) [18]
    • Sound RAM: 132 MB/sec (16‑bit, 66 MHz)
    • SRAM: 44 MB/sec (16‑bit, 22 MHz, HM62256)
  • Internal processor bandwidth: 13 GB/sec
    • SH4 cache: 6.4 GB/sec (2× 64‑bit, 400 MHz)
    • Elan: 2.133 GB/sec (128‑bit, 133.3 MHz)
    • PowerVR2: 3.2 GB/sec (2× 64‑bit, 200 MHz)
    • AICA: 256 MB/sec (32‑bit, 67 MHz)
  • System ROM bandwidth: 88 MB/sec [6]
    • BIOS EPROM: 80 MB/sec (16‑bit, 40 MHz) [19][20]
    • EEPROM: 8 MB/sec (2× 16‑bit, 2 MHz) [21]
  • Cartridge ROM bandwidth: 900 MB/sec (50 MHz) [22]
    • Note: High-speed access allows ROM to effectively be used as RAM, and textures streamed directly from ROM. [23]
  • Cartridge RAM bandwidth: 100 MB/sec (16-bit, 50 MHz)

NAOMI 2 GD-ROM Specifications

The NAOMI GD-ROM, released in 2001, is identical to the standard NAOMI, but uses GD-ROM discs for storage instead of ROM cartridges. It comes with a DIMM Board, which is very similar to a ROM cartridge, but with RAM instead of ROM. When a game is installed, the GD ROM content is loaded onto the DIMM Board RAM, so that the game data runs from the DIMM Board rather than the GD-ROM disc. The NAOMI 2 GD-ROM specification includes the following differences:

  • Board composition: Motherboard + Daughter Board + DIMM Board
  • Storage media: GD-ROM drive
    • GD-ROM transfer rate: 1.8 MB/sec (1800 KB/sec)

Memory

  • RAM: 392–648 MB (SDRAM)
    • Main RAM: 32 MB
    • VRAM: 96 MB
    • Sound RAM: 8 MB
    • DIMM RAM: 256–512 MB (SDRAM) [24]
  • L2 cache: 256 KB
  • ROM: 26 MB
    • System ROM: 2048.25 KB (24 MB BIOS EPROM, 256 bytes EEPROM)
    • DIMM ROM: 24 MB (EPROM)

Bandwidth

  • RAM bandwidth: 7–8 GB/sec
    • Main RAM: 1.6 GB/sec
    • VRAM: 4.133 GB/sec
    • Sound RAM: 132 MB/sec
    • SRAM: 44 MB/sec
    • DIMM RAM: 1.064–2.128 GB/sec (1/2× 64-bit, 133 MHz) [24][25]

List of Games

NAOMI 2 Games

NAOMI 2 GD-ROM Games

NAOMI 2 Satellite Terminal Games


Sega arcade boards
Originating in arcades








  1. ↑ htt (Wayback Machine: 1998-12-06 11:10)
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 http://www.ign.com/boards/threads/noami-2-future.6157195/
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 http://www.segatech.com/arcade/naomi2/index.html
  4. ↑ http://computer.org/micro/articles/dreamcast_2.htm (Wayback Machine: 2000-08-23 20:47)
  5. ↑ 5.0 5.1 5.2 http://segatech.com/technical/overview/index.html
  6. ↑ 6.0 6.1 6.2 6.3 6.4 https://github.com/mamedev/mame/blob/master/src/mame/drivers/naomi.cpp
  7. ↑ File:CY2308 datasheet.pdf
  8. ↑ 8.0 8.1 http://pdf.datasheetcatalog.com/datasheet/nec/UPD4564323G5-A80-9JH.pdf
  9. ↑ htt (Wayback Machine: 2014-07-03 01:18)
  10. ↑ http://ign.com/articles/2000/09/21/jamma-2000-naomi-2-revealed
  11. ↑ File:NAOMI 1998 Press Release JP.pdf
  12. ↑ http://www3.sharkyextreme.com/hardware/reviews/video/neon250/2.shtml (Wayback Machine: 2007-08-11 10:20)
  13. ↑ http://wiki.arcadeotaku.com/w/Sega_Naomi_Universal
  14. ↑ http://cadcdev.sourceforge.net/docs/kos-current/video_8h_source.html
  15. ↑ http://mamedb.com/game/clubkrte
  16. ↑ File:XCF01S datasheet.pdf
  17. ↑ File:HM5264 datasheet.pdf
  18. ↑ File:HY57V161610D datasheet.pdf
  19. ↑ http://pdf.datasheetcatalog.com/datasheets2/19/194530_1.pdf
  20. ↑ File:http://static1.squarespace.com/static/51f517f0e4b01da70d01ca2a/t/5454670fe4b07d8d6df49459/1414817551272/27C160.pdf
  21. ↑ File:AT93C46 datasheet.pdf
  22. ↑ File:S29GL-N datasheet.pdf
  23. ↑ http://farm6.staticflickr.com/5471/12172411045_18bfc5912f_c.jpg
  24. ↑ 24.0 24.1 http://wiki.arcadeotaku.com/w/Sega_Naomi_DIMM_board_and_GD-ROM
  25. ↑ File:M366S3323CT0 datasheet.pdf


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