Intel Desktop Board D945GCNL Technical Product Specification

1.5 Intel

945GC Chipset

The Intel 945GC chipset consists of the following devices:

• Intel 82945GC Graphics Memory Controller Hub (GMCH) with Direct Media

Interface (DMI) interconnect

• Intel 82801GB I/O Controller Hub (ICH7) with DMI interconnect

The GMCH component provides interfaces to the CPU, memory, PCI Express, and the

DMI interconnect. The component also provides integrated graphics capabilities

supporting 3D, 2D and display capabilities. The ICH7 is a centralized controller for the

board’s I/O paths.

For information about Refer to

The Intel 945GC chipset

http://www.intel.com/products/desktop/chipsets/index.htm

Resources used by the chipset Chapter 2

1.5.1 Intel 945GC Graphics Subsystem

The Intel 945GC chipset contains two separate, mutually exclusive graphics options.

Either the GMA950 graphics controller (contained within the 82945GC GMCH) is used,

or a PCI Express x16 add-in card can be used. When a PCI Express x16 add-in card is

installed, the GMA950 graphics controller is disabled.

1.5.1.1 Intel

GMA950 Graphics Controller

The Intel GMA950 graphics controller features the following:

• 400 MHz core frequency

• High performance 3-D setup and render engine

• High quality texture engine

⎯ DX9* Compliant Hardware Pixel Shader 2.0

⎯ Alpha and luminance maps

⎯ Texture color-keying/chroma-keying

⎯ Cubic environment reflection mapping

⎯ Enhanced texture blending functions

• 3D Graphics Rendering enhancements

⎯ 1.3 Dual Texture GigaPixel/Sec Fill Rate

⎯ 16 and 32 bit color

⎯ Maximum 3D supported resolution of 1600 x 1200 x 32 at 85 Hz

⎯ Vertex cache

⎯ Anti-aliased lines

⎯ OpenGL* version 1.4 support with vertex buffer and EXT_Shadow extensions