iMac G4 (20-inch)
The largest iMac G4, with a 20-inch widescreen display.
Overview
The last major version of the iMac G4 added a 20-inch widescreen LCD at 1680 x 1050 pixels. To carry the extra weight the neck was made stiffer, which also made the display harder to position, and the machine weighed about 40 pounds.
It used a 1.25 GHz G4 with a 167 MHz bus, 256 MB of DDR memory, GeForce FX 5200 Ultra graphics and a SuperDrive. USB 2.0, FireWire 400 and AirPort Extreme were included.
The iMac G4 design was replaced by the iMac G5 in the following year, but the 20-inch model remains the high point of the dome-and-arm format.
Why it mattered
It was the finale of the dome iMac, offering the biggest screen of any consumer Mac to date.
At a glance
- Announced
- November 18, 2003
- Released
- November 18, 2003
- Launch price
- $2,199
- Chip / processor
- PowerPC G4, 1.25 GHz
- Display
- 20"
- Storage
- 80 or 160 GB
- Status
- Vintage
Highlights
- 20-inch widescreen at 1680 x 1050
- 1.25 GHz PowerPC G4
- SuperDrive and AirPort Extreme
- USB 2.0 and FireWire 400
Tech specs
Specifications as published at launch. Some values (like battery life) are manufacturer estimates.
Display
- Size
- 20-inch
- Type
- Widescreen TFT LCD
- Resolution
- 1680 x 1050
Chip
- Chip
- PowerPC G4, 1.25 GHz
Memory
- RAM
- 256 MB DDR SDRAM
- Storage options
- 80 or 160 GB hard disk; SuperDrive
Graphics
- GPU
- Nvidia GeForce FX 5200 Ultra, 64 MB
Ports
- Ports
- USB 2.0, 2 FireWire 400, mini-VGA, Ethernet, modem
Connectivity
- Wi-Fi
- AirPort Extreme (802.11g)
Design
- Weight
- 18.2 kg (40.1 lb)
Software
- Launch OS
- Mac OS X 10.3 Panther
Availability
- Announced
- November 18, 2003
- Released
- November 18, 2003
- Launch price
- $2,199
Colors
- Finishes
- White

