iMac G4 iMac G4

iMac 15-inch Late 2003 Datasheet

In the ever-evolving landscape of personal computing, certain milestones stand out, marking significant leaps forward in technology and design. One such milestone is the debut of the Apple iMac 15-inch Late 2003 (Flat Panel Display) on September 8, 2003. Part of the legendary iMac G4 series, this computer not only showcased Apple’s prowess in innovation but also set a new standard for desktop computing.

With its announcement, Apple heralded a new era of desktop computing, boasting significant enhancements to its popular iMac lineup. The iMac 15-inch Late 2003 came equipped with faster PowerPC G4 processors, running at speeds up to 1 GHz, delivering blazing-fast performance for both personal and professional tasks. Coupled with faster DDR memory and NVIDIA graphics, this powerhouse of a machine promises unparalleled speed and efficiency.

One of the most striking features of the iMac 15-inch Late 2003 was its groundbreaking design. Crafted around an ultra-compact base, the flat panel display seemingly floated in mid-air, offering users the flexibility to adjust its height or angle effortlessly with just a touch. This innovative design not only enhanced ergonomics but also added a touch of elegance to any workspace.

iMac G4 15-inch and 17-inch
Source: userlandia.com – iMac G4 15-inch and 17-inch

In addition to its impressive performance and design, the iMac 15-inch Late 2003 offered a plethora of connectivity options, ensuring seamless integration with a variety of devices. With FireWire 400 and USB 2.0 ports, users could easily connect digital cameras, DV camcorders, iPods, and more, for quick and hassle-free data transfer. Moreover, with support for AirPort Extreme wireless networking and optional built-in Bluetooth, the iMac provided users with the latest in wireless connectivity, further enhancing its versatility.

Every iMac 15-inch Late 2003 came bundled with Mac OS X Jaguar and Apple’s iLife applications, offering a complete suite of tools for managing digital content. From iTunes for music management to iPhoto for organizing photos and iMovie for video editing, users had everything they needed to unleash their creativity right out of the box. Additionally, the inclusion of productivity and entertainment titles such as Quicken 2003 Deluxe and Tony Hawk’s Pro Skater 4 ensured that users could work and play with ease.

Under the hood, the iMac 15-inch Late 2003 was powered by a robust 1 GHz PowerPC G4 processor, capable of handling even the most demanding tasks with ease. Backed by 256 MB of RAM and a 15-inch LCD TFT Display, this machine offered a crisp, clear, and vibrant computing experience. With an 80 GB hard drive and a tray-loading CD-RW drive, users had ample storage space for their files and media. Additionally, the option to upgrade to a DVD-ROM/CD-RW Combo drive provided users with added flexibility for entertainment purposes.

Upon its release, the iMac 15-inch Late 2003 was available immediately through the Apple Store, Apple’s retail stores, and authorized resellers. Build-to-order options and accessories, including additional memory, AirPort Extreme Card, and Bluetooth, allowed users to customize their iMac to suit their needs. However, despite its popularity, the iMac 15-inch Late 2003 was discontinued on July 1, 2004, after just over a year on the market.

Despite its relatively short lifespan, the iMac 15-inch Late 2003 has endured as a beloved icon among retro computing enthusiasts. Its iconic design, coupled with its powerful hardware, continues to captivate users even 20 years later. As a testament to Apple’s innovative spirit and commitment to pushing the boundaries of technology, the legacy of the iMac 15-inch Late 2003 lives on, serving as a reminder of the company’s enduring impact on the world of computing.

iMac with Flat Panel Display
Source: techable.com – iMac with Flat Panel Display

iMac 15-inch Late 2003 Details

IntroducedSeptember 8, 2003
DiscontinuedJuly 1, 2004
Model IdentifierPowerMac6,1 (Early models)
PowerMac6,3 (Late models)
Model NumberM6498
Order NumberM9285LL/A
Original Price$1,299
Weight21.3 Ibs.
9.661 KG
Dimensions12.95 – 20” H x 15.1 – 16.3” W x 10.6 – 16.3” D
32.89 – 50.8 cm H x 38.35 – 41.4 cm W x 26.92 – 41.4 cm D
Base diameter 10.6″ / 26.92 cm

iMac G4 15-inch Tech Specs


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

Storage & Media

Storage80 GB
160 GB
Media1 – 32x DVD-ROM/CD-RW “Combo” drive


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 Display15″ TFT LCD Display
Brightness200 cd/m²
Resolutions640 x 480
800 x 600
1024 x 768


Graphics CardNVIDIA GeForce4 MX
Graphics Memory32 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 – Built-in microphone
1 – 3.5-mm analog input jack
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)

Keyboard and Mouse

PeripheralsApple Keyboard
Apple Mouse


Original OSMac OS X 10.2.7
Later OSMac OS X 10.3.1
Maximum OSMac OS X 10.5.8
FirmwareMac OS ROM
Bundled SoftwareMac OS X 10.2
iMovie 2
iTunes 2
iDVD 2 (SuperDrive-equipped system only)
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


Backup Battery3.6 V Lithium (922-4760)
Maximum Continuous Power160 W
Line Voltage90-264 V AC

Further Reading and References

Disclaimer: The data presented in this article is under continuous development and has been manually collected from various sources based on their availability. The author of this article may revise this dataset as additional research is conducted and reviewed. Please note that the information is provided “as is” and “as available” without express or implied warranties. The author cannot be held responsible for any omissions, inaccuracies, or errors in the published information. Any warranties relating to this information are hereby disclaimed.

Last updated: February 18, 2024