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Pci express architecture – Apple Power Mac G5 (Late 2005) User Manual

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Technology Overview
Power Mac G5

PCI Express Architecture

The new Power Mac G5 introduces a modern PCI Express architecture to the Mac plat-
form, opening up a world of high-performance system technologies and peripherals.
PCI Express paves the way for emerging solutions for media and networking, making
it a future-savvy choice for your lab or studio.

Built into the Power Mac G5 architecture is an all-new system controller. This fast
application-specifi c integrated circuit (ASIC) integrates a new lower-latency memory
subsystem with support for ultrafast DDR2 main memory—plus 16-lane PCI Express
graphics and the dual-channel, bidirectional frontside bus that made its debut in the
original Power Mac G5.

Dual bidirectional

frontside buses

System

controller

PCI Express

graphics

PCI Express

expansion

SuperDrive with

double-layer support

High-performance I/O

Dual-core PowerPC

G5 processors

533MHz DDR2

memory

Dual Gigabit

Ethernet

Serial ATA

storage