Compaq 8000 Technical Reference Guide: HP Compaq 8000 Elite Series Business De - Page 68

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. Q45 GMCH Analog RGB Monitor Digital DisplayPort Monitor PCIe x16 Graphics slot [1] Switch GMA 4500 Controller SDRAM Controller DDR3 SDRAM (System Memory) PCIe x4/x16 slot [1] PCIe data ICH10 PCIe I/F 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 www.hp.com Technical Reference Guide