![](http://datasheet.mmic.net.cn/340000/82865G_datasheet_16452471/82865G_22.png)
Intel
82865G/82865GV GMCH Datasheet
23
Introduction
The graphics features on the GMCH include the following:
Core Frequency of 266 MHz
VGA/UMA Support
High Performance 3D Setup and Render
Engine
— Setup matching processor geometry delivery
rates
— Triangle Lists, Strips and Fans Support
— Indexed Vertex and Flexible Vertex Formats
— Vertex Cache
— Pixel Accurate Fast Scissoring and Clipping
Operation
— Backface Culling Support
— Supports D3D and OGL Pixelization Rules
— Anti-aliased Lines Support
— Sprite Points Support
High-Quality/Performance Texture Engine
— Per Pixel Perspective Corrected Texture
Mapping
— Single Pass Quad Texture Compositing
— Enhanced Texture Blending Functions
— 12 Level of Detail MIP Map Sizes from 1x1 to
2Kx2K
— All texture formats including 32-bit RGBA and
8-bit palettes
— Alpha and Luminance Maps
— Texture Color-keying/ChromaKeying
— Bilinear, Trilinear and Anisotropic MIP-Mapped
Filtering
— Cubic Environment Reflection Mapping
— Embossed and DOT3 Bump-Mapping
— DXTn Texture Decompression
— FXT1 Texture Compression
— Non-power of 2 Texture
— Render to Texture
2D Graphics
— Optimized 256-bit BLT Engine
— Alpha Stretch Blitter
— Anti-aliased Lines
— 32-bit Alpha Blended Cursor
— Color Space Conversion
— Programmable 3-Color Transparent Cursor
— 8-, 16- and 32-bit Color
— ROP Support
3D Graphics Rendering Enhancements
— Flat and Gouraud Shading
— Color Alpha Blending For Transparency
— Vertex and Programmable Pixel Fog and
Atmospheric Effects
— Color Specular Lighting
— Z Bias Support
— Dithering
— Line and Full-scene Anti-Aliasied
— 16- and 24-bit Z Buffering
— 16- and 24-bit W Buffering
— 8-bit Stencil Buffering
— Double and Triple Render Buffer Support
— 16- and 32-bit Color
— Destination Alpha
— Vertex Cache
— Maximum 3D Resolution Supported:
1600x1200x32 @ 85Hz
— Fast Clear Support
Video DVD/PC-VCR
— Hardware Motion Compensation for MPEG2
— Dynamic Bob and Weave Support for Video
Streams
— Synclock Display and TV-out to video source
— Source Resolution up to 1280x720 with
3-vertical taps and 1920x1080 with 2-vertical
taps
— Software DVD At 30 fps, Full Screen
— Supports 720x480 DVD Quality Encoding at
low processor Utilization for PC-VCR or home
movie recording and editing
— Video Overlay
— Single High Quality Scalable Overlay
— Multiple Overlay Functionality provided via
Stretch Blitter (PIP, Video Conferencing, etc.)
— 5-tap Horizontal, 3-tap Vertical Filtered Scaling
— Independent Gamma Correction
— Independent Brightness/Contrast/Saturation
— Independent Tint/Hue Support
— Destination Color-keying
— Source ChromaKeying
— Maximum Source Resolution: 720x480x32
— Maximum Overlay Display Resolution:
2048x1536x32
Video Mixer Render Supported (VMR)
Bi-Cubic Filter Support