HP manual Difference Matrix, Rgb Igp, DAC a, Feature D315 D325

Technical Reference Guide

Figure 6-2 shows the block diagram of the graphics processing unit. The GPU includes 256-bit 2D and 3D engines that work with a multi-pipelined processor. The processor provides hardware- assisted MPEG-2 decoding for DVD and HDTV video playback in resolutions up to 1280 x 720.

HSync

Monitor VSync

Connector

RGB

		IGP
Graphics Processing Unit
	2D	3D
	Engine	Engine
RAM	Pipelined		Memory	DDR SDRAM
				System
DAC A	Processor		Controller	Memory

Difference Matrix

Feature	D315	d325
NVidia controller type	GeForce2 MX	GeForce4 MX
Pipeline performance	350 Mpixels/sec	380 Mpixels/sec
	700 texels fill rate	760 texels fill rate
Transform & lighting engine rate	20 Mtriangeles/sec	24 Mtriangles/sec

Figure 6-2.IGP Graphics Controller Block diagram and Difference Matrix

The GPU works with the SDRAM Memory Controller to use a portion of system memory for instructions, textures, and frame (display) buffering. The SDRAM Memory Controller dynamically allocates display and texture memory amounts according to the needs of the application running on the system.

Compaq D315 and hp d325 Personal Computers 6-3

Featuring the AMD Athlon XP Processor

Second Edition - April 2003