Appendix D Compaq/NVIDIA TNT2 Pro AGP Graphics Card

D.2 FUNCTIONAL DESCRIPTION

The NVIDIA TNT2 Pro-SD Graphics Card provides high performance 2D and 3D display imaging. The card’s AGP design provides an economical approach to 3D processing by off- loading 3D effects such as texturing, z-buffering and alpha blending to the system memory while 16 megabytes of on-board SGRAM stores the main display image.

NVIDIA TNT2 Graphics Controller

128-bit

166-MHz

Data Bus

Card

Edge

Connector

AGP Bus

AGP 4X

I/F

Video

Scalar

2D/VGA

 

3D Array

Engine

 

Engine

 

 

 

Memory

I/F

CRT

Controller

300-MHz

RAM

DAC

 

16 MB

 

SGRAM

 

Frame Buffer

VSync

Analog

 

HSync

Monitor

RGB

Connector

 

BIOS

ROM

Figure D-2.NVIDIA TNT2 Pro Graphics Card Block diagram

The NVIDIA TNT2 Pro Graphics Card includes the following features:

16-MB SGRAM frame buffer using 128-bit 166-MHz access

AGP 4X transfers with sideband addressing

2D drawing engine

3D rendering engine

300-MHz RAMDAC

32-bit Z/stencil buffer eliminates hidden screen portions for faster loading

32-bit color for increased image quality

30-fps full-screen DVD playback

Dual-monitor support with a PCI graphics card

D-2Compaq Personal Computers

Original - July 2000

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Compaq 850 manual Functional Description, 2D/VGA, Ram Dac, Bios ROM