Power Macintosh G5 (Late 2005)


Family: PowerMac G3/G4/G5

Codename: ?

Gestalt ID: 406

Minimum OS: 10.4

Maximum OS: 10.5.8

Introduced: October 2005

Terminated: August 2006


CPU: PowerPC 970MP "G5"

CPU Speed: 2.0/2.3/2x2.5 GHz

CPU Cores: 2

FPU: integrated

Bus Speed: 1.0/1.15/1.25 GHz

Register Width: 64-bit

Data Bus Width: 64-bit

Address Bus Width: 64-bit

Level 1 Cache: 32 kB data, 64 kB instruction

Level 2 Cache: 1 MB per-core (2 MB total)

ROM: 1 MB ROM + 3 MB toolbox ROM loaded into RAM

RAM Type: PC4200 DDR

Minimum RAM Speed: 533 MHz

Onboard RAM: 0 MB

RAM slots: 8

Maximum RAM: 16.0 GB

Expansion Slots: 2x 4-lane, 2x 8-lane PCI Express


GPU: Various (See Notes) (16-lane PCI Express)

VRAM: Various (See Notes)

Max Resolution: all resolutions supported

Video Out: DVI


Hard Drive: 160/250/250 GB 7200 RPM

ATA Bus: Serial-ATA

Optical Drive: 32x/24x/20x/16x/16x/4x CD-RW/DVD±RW/DVD+R DL


USB: 4 (2.0)

Firewire: 2

Firewire800: 1

Audio Out: 2x stereo 24 bit mini, Optical S/PDIF

Audio In: stereo 24 bit mini, Optical S/PDIF

Speaker: mono


Modem: optional 56 kbps (See Notes)

Ethernet: 10/100/1000Base-T

Wi-Fi: optional 802.11b/g

Bluetooth: optional 2.0+EDR


Power: 700 Watts

Dimensions: 20.1" H x 8.1" W x 18.7" D

Weight: 44.5 lbs.


The 2.0 GHz model shipped with an NVIDIA GeForce 6600 LE with 128MB of GDDR SDRAM, one single-link DVI port, and one dual-link DVI port. The 2.3 and 2x2.5 GHz models shipped with an NVIDIA GeForce 6600 with 256MB of GDDR SDRAM, one single-link DVI port, and one dual-link DVI port. BTO options included an NVIDIA GeForce 7800 GT with 256MB of GDDR3 SDRAM, one single-link DVI port, and one dual-link DVI port, an NVIDIA Quadro FX 4500 with 512MB of GDDR3 SDRAM, two dual-link DVI ports, and one stereo 3D port which occupied an adjacent PCI Express slot, and one or two 500GB 7200-rpm Serial ATA hard drives.

Announced in October 2005, the PowerMac G5 (late 2005) was the first PowerMac to ship with dual-core PowerPC G5 processors, and the last professional Mac desktop to use PowerPC processors. It also included faster bus and memory speeds, larger hard drives on the low and middle-end models, better graphics cards, and PCI Express expansion slots. It was available in three configurations: the 2.0 GHz model was $1999, the 2.3 GHz model was $2499, and the 2x2.5 GHz model, with four processor cores, was $3299. All models were discontinued in August 2006, with the release of the Intel-based Mac Pro.

Picture Credits:
Apple, Inc.