The iMac G5 (2004–2006) introduced a clean, minimalist all-in-one design by integrating the entire computer behind a widescreen flat-panel display, delivering powerful performance in a slim, elegant form factor.

Key Specifications:

• Processor: PowerPC G5 (1.6 GHz to 2.1 GHz)
  
• Display Sizes: 17″ or 20″ widescreen LCD (up to 1680 × 1050 resolution)
  
• RAM: 256MB to 2.5GB DDR/DDR2 SDRAM (user-upgradeable)
  
• Storage: 80GB to 500GB SATA HDD
  
• Optical Drive: Slot-loading Combo Drive or SuperDrive (DVD±RW)
  
• Graphics: NVIDIA GeForce FX 5200, GeForce 6600, or ATI Radeon 9600
  
• Ports:
  1. 3x USB 2.0
  2. 2x FireWire 400
  3. Ethernet, audio in/out
     
  4. Mini-VGA (external display support)
• OS Compatibility: Ships with Mac OS X 10.3 or 10.4; supports up to 10.5.8
  
• Cooling: Intelligent quiet fan system (later models included sensors and diagnostics)

Do You Know?

The iMac G5 was Apple’s first desktop where the entire computer was built directly behind the screen, a design concept that lives on in today’s iMacs. It marked the transition away from the dome-and-arm iMac G4 and toward a unified flat panel, cleaner, more modern, and efficient. Internally, the use of the PowerPC G5 processor brought desktop-class performance to an all-in-one form, making it ideal for creative pros, students, and families alike. It was also the last iMac to use PowerPC architecture before the Intel-based iMacs arrived in 2006.