AC82G41SLGQ3 Datasheet, PDF (532/604 Pages) Intel Corporation – Intel® 4 Series Chipset Family

Functional Description
13.4
Integrated Graphics Device
(Intel^® 82Q45, 82Q43, 82B43, 82G45, 82G43
GMCH Only)
Figure 10.
This section details the chipset integrated graphics engines (3D, 2D, and Video), 3D
pipeline, and the respective capabilities.
The GMCH graphics device supports ten fully programmable execution cores, enabling
greater performance than previous generation chipsets.
The GMCH internal graphics devices (IGD) contain several types of components. The
major components in the IGD are the engines, planes, pipes, and ports. The GMCH has
a 3D/2D Instruction Processing unit to control the 3D and 2D engines, respectively. The
IGD’s 3D and 2D engines are fed with data through the memory controller. The outputs
of the engines are surfaces sent to memory, which are then retrieved and processed by
GMCH planes.
GMCH Graphics Controller Block Diagram
Video Engine
2D Engine
3D Engine
Vertex Fetch/Vertex Shader
Geometry Shader
Clipper
Strip & Fan/Setup
Windower/IZ
Memory
Plane B
Sprite B
Cursor B
VGA
Plane C
Sprite C
Cursor C
Alpha Blend/
Gamma/Panel
Fitter
Pipe B
Pipe C
M
CRT
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SDVO B/C
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iHDMI
X
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13.4.1
3D and Video Engines for Graphics Processing
The 3D graphics pipeline for the chipset has a deep pipelined architecture in which each
stage can simultaneously operate on different primitives or on different portions of the
same primitive. All the cores are fully programmable, increasing the versatility of the
3D Engine.
The 3D engine also has a number of performance and power-management
enhancements, providing improved power/performance ratios over the IGD. These
include:
• Execution Units increased to 10 from the previous 8 EUs
• Improved HDDVD hardware acceleration
• Graphics support for Intel Virtualization Technology DMA
• Graphics support for Intel TXT (82Q45/82Q43 GMCH Only)
• Intel HD Audio Playback AVC/VC1 decoding in hardware
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Datasheet