Canopus SPECTRA 2500 Riva TNT

by Anand Lal Shimpi on September 6, 1998 10:15 PM EST
Graphics Engine
  • nVIDIA RIVA TNT
  • 128-bit graphics engine and memory interface
  • 250 MHz integrated RAMDAC
  • 32-bit hardware VGA core
  • Bus Mastering DMA

Memory Technology

  • 16 MB SDRAM
  • 128-bit memory interface

Board Features

  • AGP 2X compliant with Sideband addressing mode
  • S-Video and composite TV-out connectors
  • Programmable Flash BIOS
  • VESA DDC2B compliant
  • 9-pin mini-DIN for external "Reverse" passthrough connection
  • Internal 14-pin row header for internal "Reverse" passthrough connection
  • Internal 26-pin row header for VideoPORT 600 or RIVA Video Port connection

3D Features

  • Twin Texel (TNT) 32-bit (R,G,B + Alpha) graphics pipeline
  • Two texture mapped, lit pixels per clock
  • Single pass multi-texturing rendering support
  • High speed triangle setup engine
  • Per pixel perspective correct texture mapping for fog, light, and MIP mapping
  • Full scene anti-aliasing
  • Point sampled, Bilinear, Trilinear, and 8-tap Anisotropic filtering
  • 121 Direct3D Alpha blending modes
  • Bump mapping
  • 16 or 24 bit Z-buffer
  • 8 bit Stencil buffer
  • Subpixel accuracy
  • Texture and Vertex caches
Video Features
  • Backend hardware scaling
  • Multitap X and Y sub-pixel interpolation with filtering
  • Hardware color space conversion (YUV 4:2:2, 4:2:0)
  • Multiple video windows
  • Overlay support up to 1600x1200 in true color mode

TV-Output

  • High quality TV encoder
  • NTSC and PAL support
  • Simultaneous TV/monitor display
  • 640x480, 800x600, and 920x690 desktop resolutions
  • Extensive support of Direct Draw and DOS modes under 920x690
  • Auto-detection and boot-up to TV (no monitor required)

System Requirements

  • Pentium Class (200 MHz or better)
  • AGP expansion slot
  • System memory: 16MB Windows 9X, 32MB Windows NT
  • VGA compatible multi-frequency monitor
  • CD-Rom drive
  • Windows 95/98/NT4

OS Support

  • MS-DOS
  • Windows 95/98
  • Windows NT 4.0

API Support

  • DirectX 6
  • Open GL ICD for Windows 9X/NT
  • VBE 2.0/3.0
  • VESA DPMS
Index Exploring the Spectra
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