Functional Description - HP 8000f - Elite Ultra-slim Desktop PC Technical Reference Manual

Integrated Graphics Subsystem

6.2 Functional Description

The Intel Q45 GMCH component includes an Intel integrated Graphics Media Accelerator
(GMA) 4500 controller (Figure 6-1). The GMA 4500 operates off the internal PCIe x16 bus and
can directly drive an external, analog multi-scan monitor and a DisplayPort-compatible digital
monitor simultaneously. The GMA 4500 includes a memory management feature that allocates
portions of system memory for use as the frame buffer and for storing textures and 3D effects.
Analog
Monitor
Digital
Monitor
PCIe x16 Graphics slot [1]
PCIe x4/x16 slot [1]
NOTE: [1] SFF and CMT form factors only.
Figure 6-1. Q45-based Graphics, Block diagram
The GMA 4500 provides the following features:
■
Rapid pixel and texel rendering using four pipelines that allow 2D and 3D operations to
overlap, speeding up visual effects, reducing the amount of memory for texture storage
■
Zone rendering for optimizing 3D drawing, eliminating the need for local graphics memory
by reducing the bandwidth
■
Dynamic video memory allocation, where the amount of memory required by the application
is acquired (or released) by the controller
■
Intelligent memory management allowing tiled memory addressing, deep display buffering,
and dynamic data management
■
400-MHz core engine
■
350-MHz 24-bit RAMDAC
■
2D engine supporting GDI+ and alpha stretch blithering up to 2048 x 1536 with
32-bit color @ 75 Hz refresh (QVGA)
■
3D engine supporting Z-bias and up to 1600 x 1200 w/32-bit color @ 85 hz refresh
6-2
RGB
DisplayPort
Switch
PCIe data
Q45 GMCH
GMA 4500
Controller
ICH10
PCIe I/F
www.hp.com
DDR3
SDRAM
SDRAM
(System
Controller
Memory)
Technical Reference Guide