This comes from the SIS webpage:
Code:
DX9 S/W Compliant
High performance 256Bit 3D/128Bit 2D Graphic Engine
- 2 pixel rendering pipelines and 4 texture units per cycle (2P4T)
- Up to 200 MHz ECLK
SiS Ultra-AGPII™ Technology w/ up to 3.2GB/s Data Transfer Rate
- Successor of Ultra-AGPII™ Technology and double the bandwidth up to 3.2GB/s with DDR400
- AGP8X equivalent bandwidth for 3D/2D/Video
Advanced Hardware Acceleration for DVD playback
Share Memory Size 32MB and 64MB
Dual 12-bit DDR Digital Interface for Digital LCD/TV-OUT support
- NTSC/PAL TV-OUT
- LCD Monitor
- Dual view function support for LCD-TV,LCD-CRT or CRT-TV
Built-in high performance 333MHz RAMDAC
Graphics support mode
- CRT highest resolution mode: 2048x1536x32@75NI
- LCD highest resolution mode: 1600x1200x32@ 60NI
- TV highest resolution mode: 1024x768x32@60NI
The SIS 661 FX is the chipset on your motherboard. That chipset has an integrated graphics engine. The performance of this chipset is not very high. I haven't found any benchmark results on-line. But by looking at the specs (see above), I can tell you that this is a very basic graphics engine. You can play some games at low detail, but you have no possibility to use shaders, Anti-Aliassing, AF,...
For serious gaming, you will have to buy a descent graphics card to put in your AGP-bus. (eg. Radeon 9600XT, 9800Pro or higher)