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Technical specifications

  1. Main processor : NEC VR4300 (93.75 MHz), based on RISC processor, MIPS R4300i-series.
    • L1 Cache: 24 KB, splitted in 16KB for instructions and 8KB for data.
    • No L2 cache.
    • Manufactured by NEC, 35 µm precision.
    • 32bit busses (addresses and data).
    • Instruction set : MIPS R4000 64-bit.
    • Adressable memory : 4GB (up to virtual 1TB).
    • 4.6 million transistors.
    • 5-stage scalar pipeline with integrated FPU.
    • Capacity to execute 93 million opérations per second.
    • Bandwith : 250MB/s (not DMA).
    • Microprocessor can't access directly the RAM.
  2. Graphic processors : SGI 62.5 MHz 64-bit RCP ("Reality" co-processor), with 2 sub-processors.
    • RSP (Reality Signal Processor), which controls 3D graphics and audio functionalities.
      • 8-bit vector processeur based on MIPS R4000.
      • Programmable using microcode (µcode). Possibilities to add or modify existing functions.
      • Transformation, clipping, lighting, triangle setup, and audio decoding (audio can also be done using main CPU).
      • Displayable polygons : initially about 100000 polygons per second, without quality loss. Some more recent games could display more thanks to graphic processor microcode optimization.
    • RDP (Reality Drawing Processor), rasterizer handles all pixel drawing operations in hardware.
      • Z-buffering : spatial relationship between 3D objects (is the hero in front of the house or behind?)
      • Anti-aliasing : smoothes jagged lines and edges (reduces "stair-effetc").
      • Texture mapping : places textures and images over shapes.
      • Bilinear filtering : prevents texture blockiness by blurring when resizing.
      • Mip-mapping : creates distance textures of varying degress of fidelity.
      • Trilinear mip-map interpolation : filters mip-maps and textures smoothly without blockiness. Nintendo 64's filtering is not entirely accurate, its precision was reduced to lower mathematical demands.
      • Perspective-correct texture mapping : keeps textures from "warping" when viewed at different angles.
      • Environment mapping.
      • Gouraud shading, fillrate of about 30 millions pixels per second when Z-buffering is enabled.
    • 128-bit internal data bus between RSP and RDP. Bandwith of about 1Gb/sec.
    • Resolution : from 256 x 224 to 640 x 480 pixels.
    • Color depth : 16.7 million colors, 32768 simultaneous on screen.
  3. RAM : 4 MB RDRAM (upgradable to 8 MB while using Expansion Pak).
    • Data path : 9-bit width at 500 MHz
    • Potential Memory Bandwidth : 562.5 MB/s.
    • RAM latency about 640ns.
  4. Sound :
    • 16-bit Stereo. ADPCM-support. Some games used MP3 audio (software-driven).
    • Channels: 100 PCM (max, 16-24 avg.). Each channel consumes about 1% CPU time.
    • Sampling: 48.0 kHz (max, 44.1 kHz is CD quality)
  5. Media : cartridges from 32Mb (4MB) to 512Mb (64MB).
  6. Dimensions :
    • Length : 160mm
    • Width (depth) : 190mm
    • Height : 73mm
  7. Weight : 1.1 kg
  8. Controller connectors : 4
  9. Controller : 1 analog stick, 2 lateral triggers, 1 digital cross, 6 action buttons, 1 start button, and 1 digital trigger.

Game of the moment (random)

V-Rally Edition 99

V_Rally ()

V-Rally Edition 99 is a wanna-be realistic rally game with a consistent content.

Latest messages in the board

justAplayer in Les homebrews
Comme il ramait sur mon PC, j'ai eu du mal avancer l'poque. Dsol du coup je n'ai pas encore rdig de test depuis le temps. Je pense me...

LordSuprachris in Les news Nintendo64EVER
Merci smile

Zestorm in Les news Nintendo64EVER
Une grosse mise à jour a été effectuée avec l'ajout ou le remplacement de captures d'écran faites avec le CD64 et qui n'étaient pas propre, le...

justAplayer in Suggestions, bugs repérés, améliorations, ...
Ah dommage, j'aurais prfr un rassemblement de fans :-D

LordSuprachris in Suggestions, bugs repérés, améliorations, ...
Aucune ide, peut-tre que le site a t crawl par un bot ^^

justAplayer in Suggestions, bugs repérés, améliorations, ...
Peut-tre au dtour d'un site de vente, on tombera dessus ^_^

justAplayer in Suggestions, bugs repérés, améliorations, ...
Il s'est pass quoi ce jour l ??

LordSuprachris in Suggestions, bugs repérés, améliorations, ...
Salut. Merci pour l'ajout de cette version. On avait dj la preuve de son existence en UKV et NOE mais pas encore en FAH smile Je viens de l'ajouter au...

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