5 kt965 graphics subsystem, 1 intel gma 3000 graphics controller, 2 dynamic video memory technology (dvmt) – Kontron KT965 Series User Manual

Page 18: Kt965 family, Kt965 graphics subsystem

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KT965 Family

KTD-00699-S

Public User Manual

Date: 2010-04-15 Page

18 of 90

3.5

KT965 Graphics Subsystem

The KT965 boards use the Intel Q965 Express chipset for the graphical control. This 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 Expressx16 add-in
card is installed, the GMA 3000 graphics controller is disabled.

3.5.1 Intel GMA 3000 Graphics Controller

Features of the Intel GMA 3000 graphics controller includes:

• 667 MHz core frequency
• High performance 3-D setup and render engine
• High quality texture engine

o DX9.0c* and OpenGL* 1.4 + extensions compliant
o 32-bit and 16-bit Full Precision Floating Point Operations
o Up to eight Multiple Render Targets (MRTs)
o 128-bit floating point texture formats
o Bilinear, Trilinear, and Anisotropic MipMap filtering
o Alpha and luminance maps

• 3D Graphics Rendering enhancements

o 1.3 dual texture GigaPixel/sec fill rate
o 16 and 32 bit color
o Maximum 3D supported resolution of 1600 x 1200 x 32 at 85 Hz
o Vertex

cache

o Anti-aliased

lines

o OpenGL version 1.5 support with vertex buffer and EXT_Shadow extensions

• 2D Graphics enhancements

o 8, 16, and 32 bit color
o Optimized 256-bit BLT engine
o Color space conversion
o Anti-aliased

lines

• Video

o Hardware motion compensation for MPEG2 and HD video
o Software DVD at 30 fps full screen
o Motion adaptive de-interlacing

• Display

o Integrated 24-bit 400 MHz RAMDAC
o Up to 2048 x 1536 at 75 Hz refresh (QXGA)
o DVI specification 1.0 compliant
o Dual independent display options with digital display (using ADD2 card)
o 180-degree hardware screen rotation
o HDCP

support

o DDC2B compliant interface with Advanced Digital Display 2 card or Media Expansion Card

(ADD2/MEC), support for TV-out/TV-in and DVI digital display connections

o Supports flat panels up to 2048 x 1536 at 75 Hz (when in dual-channel mode) or digital

CRT/HDTV at 1920 x 1080 at 85 Hz (with ADD2/MEC)

o Two multiplexed SDVO port interfaces with 270 MHz pixel clocks using an ADD2/MEC card

• Dynamic Video Memory Technology (DVMT) support up to 256 MB

3.5.2 Dynamic Video Memory Technology (DVMT)

DVMT enables enhanced graphics and memory performance through highly efficient memory utilization.
DVMT ensures the most efficient use of available system memory for maximum 2-D/3-D graphics
performance. Up to 256 MB of system memory can be allocated to DVMT on systems that have 512 MB or
more of total system memory installed. DVMT returns system memory back to the operating system when
the
additional system memory is no longer required by the graphics subsystem.
DVMT will always use a minimal fixed portion of system physical memory (as set in the BIOS Setup) for
compatibility with legacy applications. An example of this would be when using VGA graphics under DOS.
Once loaded, the operating system and graphics drivers allocate additional system memory to the graphics
buffer as needed for performing graphics functions.
IMPORTANT

: The use of DVMT requires driver support by the operating system.

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