Integrated Graphics Subsystem

The graphics controller integrated into the 82915G/GV GMCH component includes 2D and 3D accelerator engines working with a deeply-pipelined pre-processor. Hardware cursor and overlay generators are also included as well as a legacy VGA processor core. The IGC supports three display devices:

■One progressive-scan analog monitor

■Up to two additional video displays with the installation of an optional Advanced Digital Display (ADD2) card in the PCI Express x16 graphics slot.

✎The IGC can support LVDS, TMDS, or TV output with the proper encoder option. Special features of the integrated graphics controller include:

■333-MHz core engine

■400-MHz 24-bit RAMDAC

■2D engine supporting GDI+, alpha stretch blithering, and color space conversion

■3D engine supporting Z-bias and up to 1600 x 1200 w/32-bit color @ 85 hz refresh

■Video DVD support:

The Intel graphics controller uses a portion of system memory for instructions, textures, and frame (display) buffering. Using a process called Dynamic Video Memory Technology (DVMT), the controller dynamically allocates display and texture memory amounts according to the needs of the application running on the system.

Technical Reference Guide

361834-002

6-3