DOS Days

Diamond Stealth 3D-2500

The Stealth 3D-2500 arrived in 1997, a year after the 3D-2000 series and 3D-3000 series. Designed as a budget offering, the 3D-2500 was based on the Alliance ProMotion AT24 chipset instead of an S3 chip.

Released 1997
Bus PCI
Chipset Alliance ProMotion AT24
Standards Hercules, CGA, EGA, VGA
Memory 1 MB or 2 MB EDO DRAM (64-bit)
Ports 15-pin DSUB (video out)
VGA feature connector
RAMDAC 170 MHz
Part #  
FCC ID  
Price At launch: $59.95
See Also  

The Alliance ProMotion AT24 chipset was launched in Summer 1996. It had a 128-bit 2D and 3D graphics engine that supported full bilinear filtered motion video scaling, and came with optimized Direct X driver software. Its core clock ran at 170MHz, and it supported from 1 to 4 MB of EDO or FPM DRAM.

The ProMotion AT24 was pin-compatible with Alliance's earlier ProMotion-6422 chip.

Key features:

  • 170 MHz RAMDAC
  • Resolutions up to 1600 x 1200 (with 2 MB)
  • 24-bit colour depth
  • Refresh Rates up to 120 Hz
  • Up to 16.7M colours at 800 x 600 resolution
  • MPEG-1 playback up to 30 fps

The ProMotion AT24 chip can also be found on these cards:

  • Britek Electronics BP-AL1

 

Board Revisions

 

Competition

 

In the Media

 

Setting it Up


Downloads

Operation Manual
(missing)

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Original Utility Disk
(missing)

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VGA BIOS ROM
(missing)

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More Pictures