iMac 20-inch Late 2003

The Apple iMac 20-inch Late 2003 (Flat Panel Display) is a personal computer that was designed, manufactured, and sold by Apple from 2003 to 2004 as part of the iMac G4 series of iMac computers. The computer has been introduced on November 18, 2003, and its price started at $2199.

The new iMac features a 1.25 GHz PowerPC 7445 G4 processor, 256 MB of RAM, 20-inch LCD TFT Display, 80 GB hard drive, tray-loading 4x DVD-R/CD-RW “SuperDrive”, and 64 MB NVIDIA GeForce FX 5200 Ultra graphics.

This iMac has been discontinued on July 1, 2004, and has been replaced by the iMac G5 20-inch.

Today iMac 20-inch Late 2003 is 20 years old!

iMac with Flat Panel Display
Source: – iMac with Flat Panel Display

iMac 20-inch Late 2003 Release Date and Original Price

IntroducedNovember 18, 2003
DiscontinuedJuly 1, 2004
Model IdentifierPowerMac6,3
Model NumberM6498
Order NumberM9290LL/A
Original Price$2,199
Weight40.1 Ibs.
18.189 KG
Dimensions13.93 – 20.9” H x 17.3 – 20.2” W x 10.6 – 17.3” D
35.38 – 51.02 cm H x 43.94 – 51.3 cm W x 26.92 – 43.94 cm D
Base diameter 10.6″ / 26.92 cm

Tech Specs


ProcessorPowerPC 7445 G4
Processor Speed1.25 GHz
Number of Cores1
System Bus167 MHz
Cache64 KB L1
256 KB backside L2
CoprocessorBuilt-in FPU

Storage & Media

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


Built-in Memory256 MB
Maximum Memory1 GB (Apple)
2 GB (Actual)
Memory Slots1 – PC-2700 200-pin SO-DIMM (User accessible)
1 – PC-2700 184-pin SDRAM (Factory-Installed)
Interleaving SupportNo


Built-in Display20″ TFT LCD Display
Brightness230 cd/m²
Resolutions800 x 500
840 x 524
1024 x 640
1280 x 800
1344 x 840
1680 x 1050 (Native)


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/66
Hard Drive InterfaceUltra ATA/100 (ATA-6)


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 output jack
1 – 2.5-mm Apple Pro Speaker minijack
1 – Built-in speaker
Display1 – Mini-VGA (Composite and S-video with adapter)


Original OSMac OS X 10.3
Later OSMac OS X 10.3.1
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

Keyboard and Mouse

PeripheralsApple Keyboard
Apple Mouse


Backup Battery3.6 V Lithium (922-4760)
Maximum Continuous Power190 W
Line Voltage90-264 V AC

Apple Support – iMac (USB 2.0): Technical Specifications

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