D945GTP datasheet(21/92 Pages) INTEL

21 / 92 page

Product Description

1.5 Intel® 945G Chipset

The Intel 945G chipset consists of the following devices:

• Intel 82945G Graphics Memory Controller Hub (GMCH) with Direct Media Interface (DMI)

interconnect

• Intel 82801G 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 945G chipset

http://developer.intel.com/

Resources used by the chipset

Chapter 2

1.5.1

Intel 945G Graphics Subsystem

The Intel 945G chipset contains two separate, mutually exclusive graphics options. Either the

GMA950 graphics controller (contained within the 82945G 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

• 2D Graphics enhancements

⎯ 8, 16,and 32 bit color

⎯ Optimized 256-bit BLT engine

⎯ Color space conversion

⎯ Anti-aliased lines

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