With the 3dfx/STB and Diamond/S3 mergers, two of NVIDIA's biggest supporters are now out of the picture. Looking at it from the other perspective, that of a board manufacturer, the only big graphics manufacturer left that is offering up chips to board manufacturers is NVIDIA. This of course provides for a perfect setup for every graphics board OEM to jump into the fray and offer a variety of cards based on NVIDIA's latest chip, current the RIVA TNT2.

Gigabyte is one such company that is a fairly well known on the motherboard side of things and has quietly played the video card market in the past. As a motherboard manufacturer, they've proven their abilities in the AnandTech labs with rock solid motherboards that seemingly do no wrong. Although they've been in the graphics market for quite a while, the GA-660 TNT2 is AnandTech's first glimpse at a Gigabyte video card.


(courtesy of Gigabyte)


  • Hardware triangle setup engine
  • Optimized for Direct3D acceleration
  • Complete DirectX 6.X support
  • TwiN-Texel (TNT) 32-bit graphics pipeline
  • 2 texture-mapped, lit pixels per clock
  • Single pass multi-texturing
  • Square and non-square texture support
  • Texture blending support, including:
    • Multi-textures, bump maps, texture modulation, Light maps, reflection maps, environmental maps
    • Procedural textures
  • Backend blending, including:
    • DirectX 6.X: 121 modes supported for source, destination and alpha blending
    • 32-bit ARGB rendering with destination alpha
    • Point sampled, bilinear, trilinear, and 8-tap anisotropic filtering (better than trilinear mip-mapping)
  • Per-pixel, perspective-correct, texture mapping, including fog, light, mip mapping
  • 24-bit or 16-bit Z-buffer and 8-bit stencil buffer
  • Anti-aliasing (full scene and order independent)


  • 128-bit graphics engine, optimized for single cycle operation
  • Internal 256-bit data paths for high speed Windows acceleration
  • Pipeline optimized for multiple color depths
  • Execution of all 256 raster operations
  • Multi-buffering (double, triple, and quad) for smooth animation
  • True color hardware cursor


  • Acceleration of full-motion video playback, sustaining 30 frames per second with high quality color resolution
  • Implements true bilinear filtering for scaled video
  • Backend hardware video scaling for video conferencing and playback
  • Hardware color space conversion and multi-tap X and Y filtering
  • Support for scaled field interframing
  • Per-pixel color keying
  • Multiple video windows with hardware color space conversion and filtering
  • Support for software MPEG acceleration and H.261 video conferencing
  • DVD sub-picture alpha blending compositing
  • Video acceleration for DirectShow, MPEG-1, MPEG-2, and Indeo


  • Windows 9X, Windows NT 4.0, Windows 2000
  • DirectDraw, Direct3D, DirectVideo, and ActiveX
  • OpenGL ICD for Windows 95/98 and NT
  • Standard 32-bit VGA and SVGA support


Resolution Color Depth Max. Refresh Rate
320X200 8/16/32 240Hz
320X240 8/16/32 240Hz
400X300 8/16/32 240Hz
480X360 8/16/32 240Hz
512X384 8/16/32 240Hz
640X400 8/16/32 240Hz
640X480 8/16/32 240Hz
800X600 8/16/32 240Hz
960X720 8/16/32 200Hz
1024X768 8/16/32 200Hz
1152X864 8/16/32 170/170/150Hz
1280X1024 8/16/32 150/150/120Hz
1600X900 8/16/32 120/120/100Hz
1600X1200 8/16/32 100/100/85Hz
1920X1080 8/16/32 85/85/85Hz
1900X1200 8/16/32 85/85/75Hz
2048X1536 8/16 60/60Hz

GA-660: 32/16MB for standard monitor output
GA-660F: 32/16MB with support for both standard monitors and digital flat panels

The Card

Log in

Don't have an account? Sign up now