3dfx Velocity 100 User's Guide: Specifications

Hardware Specifications

Memory Type	Synchronous Graphics RAM (SGRAM)
Memory Speed	143 MHz
RAM-DAC Speed	300 MHz
Performance	143 Million Pixels per second
Peak Bandwidth	2.29 Billion Bytes per second
Peak Processing	6 Million Polygons per second
Peak Fill Rate	286 Million Texels per second
System	Pentium II or higher CPU
Slot	AGP 1.0 compatible; supports 2x mode with sideband addressing
Board Dimensions	5.9" L x 3.5" H
Memory Address	A000h - BFFFh + 2 linear apertures assigned by PCI
ROM BIOS Address	C000h - C7FFh
I/O Address	3B0h - 3DFh (IBM standard)
DMA	No DMA channels exist
IRQ (REQUIRED!)	One PCI-assigned interrupt

3D Features

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The 3dfx graphics accelerator chip on your Velocity 100 card delivers optimum 2D, 3D, and video playback performance. Advanced 3D acceleration functions of the 3dfx chip include:

Optimized for DirectX and Direct3D acceleration
Optimized for OpenGL support
Complete DirectX 5.0 and 6.0 support
Designed for Glide 2.x and 3.x acceleration
Single-pass single-cycle multi-texturing
100% hardware triangle setup
Dual 32-bit graphics pipelines
2 texture-mapped, lit pixels per clock cycle
Square and non-square texture support
24-bit or 16-bit floating-point depth buffer
8-bit palletized texture support
Per-pixel mip-mapping
Exponential fog table