The Power Macintosh G5/2.5 DP (PCI-X) features dual 2.5 GHz PowerPC 970fx (G5) processors each with an optimized AltiVec “Velocity Engine” vector processing unit and 512k level 2 on-chip cache. It shipped configured with 512 MB of 400 MHz PC3200 DDR SDRAM, a 160.0 GB (7200 RPM) Serial ATA hard drive, an 8X DVD-R/CD-RW “SuperDrive”, and an ATI Radeon 9600 XT (AGP 8X Pro) video card with 128 MB of DDR SDRAM. Connectivity includes USB 2.0, FireWire “400″ and “800″, ADC, DVI, optical digital audio in/out, and support for AirPort Extreme (802.11g) and Bluetooth 1.1. Additionally, this model and the lower-end Power Macintosh G5 2.0 DP (PCI-X 2) include PCI-X slots.
The PowerPC 970fx “G5″ has 64-bit data paths and registers with native support for 32-bit application code. Apple also reports that it includes a “parallel data structure supporting up to 215 simultaneous in-flight instructions, [and] simultaneous issue of up to 10 out-of-order operations.” It likewise has a “dual-pipeline Velocity Engine for 128-bit single-instruction, multiple-data (SIMD) processing, two independent double-precision floating-point units, [and] advanced three-stage branch-prediction logic.”
Like the earlier models, the Power Macintosh G5/2.5 DP (PCI-X) uses the same “anodized aluminum alloy” case, and likewise, features a removable side panel for easy access to internal components and is divided into four different thermal zones with nine computer-controlled fans for optimum cooling. However, this model adds a liquid cooling system that replaces the traditional heat sink. Custom configurations also were available.
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Apple Shipped Software:
The Lineup of G5 towers each shipped with a Markedly improved and stable operating system, named Tiger. The system, Version 4 of the now famous Linux based operating system included:
Mac OS X v10.4 Tiger
Mac OS X Tiger delivers native 64-bit support, enabling you to run applications that address massive amounts of memory. It features amazing Spotlight search technology, handy Dashboard widgets and hundreds more new features. Tiger also includes all-new versions of the following system applications:
- • Safari 2
- • Mail 2
- • Address Book 4
- • iChat AV 3
- • iCal 2
- • Font Book 2
- • DVD Player 4.5
- • Preview 3
- • Xcode 2
More software
In addition, the Power Mac G5 comes with an incredible bundle of software:
- • iLife ’05
- • QuickBooks New User Edition
- • Art Directors Toolkit
- • FileMaker Pro Trial
- • GraphicConverter
- • OmniGraffle and OmniOutliner
- • Microsoft Office 2004 Test Drive
- • Zinio Reader
- • Apple Hardware Test
This model has “three open full-length PCI-X slots: one 133MHz, 64-bit slot and two 100MHz, 64-bit slots”, an 8X AGP Pro slot that “supports up to 2-GBps data throughput” and is occupied by the graphics card, as well as expansion slots for AirPort Extreme (802.11g) and Bluetooth 1.1.

