SiS 315/SiS 301 Chipset , 170MHz GPU Speed ,128/64Bit,375MHz RAMDAC 175MHz Memory Clock,2CRT w/TV-Out

315B1AT:64bit 64MB

315B2T:128bit:128MB

AGP BUS

In AGP bus interface, SiS315 implements full Side-band or pipeline command features of AGP 4X mode. One 16-stage command FIFO is implemented for reducing the latency time of AGP read access. The AGP interface is used by MPEG commands read, 3D engine texture read, 3D engine vertex data read and all 2D source data read. The AGP of SiS315 is properly designed to achieve up to 266 MHz AGP 4X clock for maximum 1000 MB/sec bandwidth.

3D Accelerator

Targeting on Microsoft Direct3D and OpenGL acceleration, SiS315 achieves extremely high fill and polygon rate in superior quality with high balanced pipeline 3D architecture. The major key technologies that guarantee a high 3D Performance are the integrated Command Queue, T&L Engine, Setup Engine, Texture Cache, and Pipeline Render Engine. The major technologies for the high performance and high quality 3D rendering in SiS315 are:

Command Queu

T&L Engine

Setup Engine

Texture Cache

Pipelined Rendering Engine

Command Queue in 3D Accelerator

Software Support

Following applications are currently supported:

Microsoft Windows 95/98/Me

Microsoft Windows NT Version 4.0 and Windows 2000

Microsoft Windows XP

Current video operation supporting by software application are:

Microsoft Video For Windows

DCI driver

Direct Draw driver

Microsoft DirectX 8 WDM Driver

Current 3D operations supporting by software application are:

Microsoft Direct3D for Windows 95,Windows 98,Windows Me and Windows 2000

OpenGL in Windows 95, Windows 98,Windows Me and Windows NT

Clear Z-buffer

Full scene anti-aliasing Bitblt

Video auto-flip with synchronous to 2D and 3D engines

Capability for using AGP memory for all 2D commands

Compete TV-OUT Solution (SiS301)

NTSC/PAL video encoder support interlaced display by dependent rate in 640x480x60Hz, 640x400x60Hz, 800x600x60Hz mode for NTSC 640x480x50Hz and 800x600x50Hz for PAL

Support 2nd CRT display

Support TV image positioning by hardware