iMac G5 20-inch

The Apple iMac G5 20-inch is a personal computer that was designed, manufactured, and sold by Apple from 2004 to 2005 as part of the iMac G5 series of iMac computers. The computer has been introduced on August 31, 2004, and its price started at $1299.

The new iMac G5 features a 1.8 GHz PowerPC 970fx G5 processor, 256 MB of RAM, 20-inch LCD TFT Display, 160 GB hard drive, slot-loading 4x DVD-R/CD-RW “SuperDrive”, and 64 MB NVIDIA GeForce FX 5200 Ultra graphics.

This iMac has been discontinued on May 3, 2005, and has been replaced by iMac G5 20-inch Mid 2005.

Today iMac G5 20-inch is 20 years old!

iMac G5
Source: – iMac G5

iMac G5 20-inch Release Date and Original Price

IntroducedAugust 31, 2004
DiscontinuedMay 3, 2005
Model IdentifierPowerMac8,1
Model NumberA1076
Order NumberM9250LL/A
Original Price$1,899
Weight25.2 Ibs.
11.430 KG
Dimensions18.6” H x 19.4” W x 7.4” D
47.24 cm H x 49.27 cm W x 18.79 cm D

Tech Specs


ProcessorPowerPC 970fx G5
Processor Speed1.8 GHz
Number of Cores1
System Bus600 MHz
Cache64 / 32 KB L1
512 KB backside L2
CoprocessorBuilt-in FPU

Storage & Media

Storage80 GB
160 GB
250 GB
Media1 – 4x DVD-R/CD-RW “SuperDrive” slot-loading


Built-in Memory256 MB
Maximum Memory2 GB
Memory Slots2 – PC-3200 183-pin DDR SO-DIMM 400 MHz
Interleaving SupportYes


Built-in Display20″ TFT LCD Display
Brightness230 cd/m²
Resolutions640 x 480
800 x 500
800 x 600
840 x 524
1024 x 640
1024 x 768
1280 x 800
1344 x 840
1680 x 1050


Graphics CardNVIDIA GeForce FX 5200 Ultra
Graphics Memory64 MB
Display Connection1 – Mini-VGA (Composite and S-video with adapter)
Display ModesVideo mirroring only
External Resolution640 x 480 at 60Hz
800 x 600 at 75Hz
1024 x 768 at 75Hz


Expansion SlotsNone
Optical Drive InterfaceUltra ATA/133
Hard Drive Interface1.5 Gbps Serial ATA (SATA)


Ethernet10/100BASE-T (RJ-45)
Wi-FiAirPort Extreme Card 802.11b/g (Optional)
BluetoothBluetooth 1.1 (Optional)
USB3 – 480 Mbps (USB 2.0)
FireWire2 – 400 Mbps
Audio In1 – 3.5-mm analog input jack
1 – Built-in microphone
Audio Out1 – 3.5-mm analog/optical combo jack
2 – Built-in speakers
Display1 – Mini-VGA (Composite and S-video with adapter)


Original OSMac OS X 10.3.5
Maximum OSMac OS X 10.5.8
FirmwareMac OS ROM
Bundled SoftwareMac OS X 10.3
iMovie 2
iTunes 2
iDVD 2
DVD Player
Mac OS X Mail
Microsoft Internet Explorer
EarthLink (includes 30 days of free service)
Quicken 2002 Deluxe
World Book Mac OS X Edition
Mac OS X Chess
Otto Matic
Deimos Rising
Acrobat Reader
Apple Hardware Test CD

Keyboard and Mouse

PeripheralsApple Keyboard
Apple Mouse


Backup Battery3 V CR2032 Lithium
Maximum Continuous Power180 W
Line Voltage100-120 V AC or 100-240 V AC

Apple Support – iMac G5: Technical Specifications

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