Technical Reference Guide 361834-002 6-3
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.
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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.
