Product Description
27
1.7 Intel
®
Q965 Express Chipset
The Intel Q965 Express chipset consists of the following devices:
• Intel 82Q965 Graphics and Memory Controller Hub (GMCH) with Direct Media
Interface (DMI) interconnect
• Intel 82801HO I/O Controller Hub (ICH8DO) 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 ICH8DO is a centralized controller for
the board’s I/O paths.
For information about Refer to
The Intel Q965 Express chipset http://developer.intel.com/
Resources used by the chipset Chapter 2
1.7.1 Intel Q965 Graphics Subsystem
The Intel Q965 Express chipset contains two separate, mutually exclusive graphics
options. Either the GMA 3000 graphics controller (contained within the 82Q965
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 GMA 3000 graphics controller is disabled.
1.7.1.1 Intel
®
GMA 3000 Graphics Controller
The Intel GMA 3000 graphics controller features the following:
• 667 MHz core frequency
• High performance 3-D setup and render engine
• High quality texture engine
⎯ DX9.0c* and OpenGL* 1.4 + extensions compliant
⎯ Vertex Shader Model 2.0 / 3.0 (Software Only)
⎯ Hardware Pixel Shader 2.0
⎯ 32-bit and 16-bit Full Precision Floating Point Operations
⎯ Up to eight Multiple Render Targets (MRTs)
⎯ Occlusion Query
⎯ 128-bit floating point texture formats
⎯ Bilinear, Trilinear, and Anisotropic MipMap filtering
⎯ Shadow maps and double sided stencils
⎯ 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