Tech Specs

Design Features Mac OS X Tech Specs

Size and weight

20-inch iMac

Height: 18.5 inches (46.9 cm)
Width: 19.1 inches (48.5 cm)
Depth: 7.4 inches (18.9 cm)
Weight: 20 pounds (9.1 kg)1

24-inch iMac

Height: 20.5 inches (52.0 cm)
Width: 22.4 inches (56.9 cm)
Depth: 8.1 inches (20.7)
Weight: 25.4 pounds (11.5 kg)1

Connections and expansion

One FireWire 400 port and one FireWire 800 port; 7 watts each

Total of five USB 2.0 ports: three ports on computer, two ports on keyboard

Communications

802.11nBuilt-in AirPort Extreme Wi-Fi wireless networking2 (based on IEEE 802.11n draft (specification); IEEE 802.11a/b/g compatible

BluetoothBuilt-in Bluetooth 2.1 + EDR (Enhanced Data Rate)

Built-in 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)

Audio

Built-in stereo speakers

Internal 24-watt digital amplifier

Headphone/optical digital audio output (minijack)

Audio line in/optical digital audio input (minijack)

Built-in microphone

Installed software

UniversalMac OS X v10.5 Leopard (includes Time Machine, Quick Look, Spaces, Spotlight, Dashboard, Mail, iChat, Safari, Address Book, QuickTime, iCal, DVD Player, Photo Booth, Front Row, Xcode Developer Tools)

iLife ’08 (includes iTunes, iPhoto, iMovie, iDVD, iWeb, GarageBand)

Environmental Status

EnergystarMajority of circuit board laminates are free of brominated flame retardants

Majority of internal cables are PVC-free

EPEATMeets ENERGY STAR requirements

Received a Silver rating from EPEAT

Display

iMac

Built-in 20-inch (viewable) or 24-inch (viewable) glossy widescreen TFT active-matrix liquid crystal display

Resolution

  • 20-inch models: 1680 by 1050 pixels
  • 24-inch model: 1920 by 1200 pixels

Millions of colors at all resolutions

Typical viewing angle

  • Display Screens20-inch models:
    160° horizontal
    160° vertical
  • 24-inch model:
    178° horizontal
    178° vertical

Typical brightness: 290 cd/m2 (20-inch models); 385 cd/m2 (24-inch model)

Typical contrast ratio: 800:1 (20-inch models); 750:1 (24-inch model)

Graphics and video support

ATI logo

20-inch model with 2.4GHz processor

  • ATI Radeon HD 2400 XT graphics processor with 128MB of GDDR3 memory

20-inch model with 2.66GHz processor

  • ATI Radeon HD 2600 PRO graphics processor with 256MB of GDDR3 memory

24-inch model with 2.8GHz or 3.06GHz processor, one of the following:

  • ATI Radeon HD 2600 PRO graphics processor with 256MB of GDDR3 memory
  • NVIDIA GeForce 8800 GS graphics processor with 512MB of GDDR3 memory

Mini-DVI output port with support for DVI, VGA, S-video, and composite video connections via adapter3

iSightBuilt-in iSight camera

Support for external display in extended desktop mode

  • Digital resolutions up to 1920 by 1200 pixels
  • Analog resolutions up to 2048 by 1536 pixels

Support for external display in video mirroring mode

Processor and memory

2.4GHz, 2.66GHz, 2.8GHz, or 3.06GHz Intel Core 2 Duo processor

6MB shared L2 cache at full processor speed

1066MHz frontside bus

1GB (one 1GB SO-DIMM) or 2GB (two 1GB SO-DIMMs) of 800MHz DDR2 SDRAM; two SO-DIMM slots support up to 4GB

Storage

Hard drive4

20-inch model with 2.4GHz processor

  • 250GB Serial ATA 7200-rpm hard drive
  • Optional 320GB or 500GB Serial ATA 7200-rpm hard drive

20-inch model with 2.66GHz processor

  • 320GB Serial ATA 7200-rpm hard drive
  • Optional 500GB or 750GB Serial ATA 7200-rpm hard drive

24-inch model with 2.8GHz or 3.06GHz processor

Hard Drive
  • 320GB Serial ATA 7200-rpm hard drive
  • Optional 500GB, 750GB, or 1TB Serial ATA 7200-rpm hard drive

Optical drive

Slot-loading 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW)

  • Writes DVD+R DL and DVD-R DL discs at up to 4x speed
  • Writes DVD-R and DVD+R discs at up to 8x speed
  • Writes DVD-RW discs at up to 6x speed and DVD+RW discs at up to 8x speed
  • Reads DVDs at up to 8x speed
  • Writes CD-R discs at up to 24x speed
  • Writes CD-RW discs at up to 16x speed
  • Reads CDs at up to 24x speed

Electrical and operating requirements

Line voltage: 100-240V AC

Frequency: 50Hz to 60Hz, single phase

Maximum continuous power: 200W (20-inch models); 280W (24-inch model)

Operating temperature: 50° to 95° F (10° to 35° C)

Storage temperature: -40° to 185° F (-40° to 85° C)

Relative humidity: 5% to 95% noncondensing

Maximum altitude: 10,000 feet

  20-inch iMac 20-inch iMac 24-inch iMac
  20-inch iMac
(MB323LL/A)		 20-inch iMac
(MB324LL/A)		 24-inch iMac
(MB325LL/A)
Processor 2.4GHz Intel Core 2 Duo 2.66GHz Intel Core 2 Duo 2.8GHz Intel Core 2 Duo
L2 cache 6MB shared
Frontside bus 1066MHz
Memory 1GB (one 1GB SO-DIMM) of 800MHz DDR2 SDRAM; supports up to 4GB 2GB (two 1GB SO-DIMMs) of 800MHz DDR2 SDRAM; supports up to 4GB
Hard drive 250GB Serial ATA4; 7200 rpm 320GB Serial ATA4; 7200 rpm
Optical drive Slot-loading 8x SuperDrive with 4x double-layer burning (DVD±R DL/DVD±RW/CD-RW)
Display 20-inch (viewable) glossy widescreen TFT active-matrix LCD, 1680 by 1050 pixels, millions of colors 24-inch (viewable) glossy widescreen TFT active-matrix LCD, 1920 by 1200 pixels, millions of colors
Video Built-in iSight camera; mini-DVI output port with support for DVI, VGA, S-video, and composite video connections via adapter3
Graphics ATI Radeon HD 2400 XT with 128MB of GDDR3 memory ATI Radeon HD 2600 PRO with 256MB of GDDR3 memory
FireWire One FireWire 400 port and one FireWire 800 port; 7 watts each
USB Three USB 2.0 ports on computer; two USB 2.0 ports on keyboard
Audio Built-in stereo speakers with 24-watt digital amplifier, built-in microphone, optical digital audio output/headphone out, optical digital audio input/audio line in
Ethernet Built-in 10/100/1000BASE-T (Gigabit)
Wireless Built-in AirPort Extreme (802.11n)2; built-in Bluetooth 2.1 + EDR (Enhanced Data Rate)
Hardware accessories Apple Remote, Apple Keyboard, and Mighty Mouse
Other Built-in IR receiver Built-in IR receiver, optional VESA mount adapter kit
Configure-to-order options • 2GB Memory Upgrade (two 1GB)
• 4GB Memory Upgrade (two 2GB)
• 320GB or 500GB Hard Drive
• Apple Wireless Keyboard
• Wireless Mighty Mouse
• Apple USB Modem
• Software: iWork ’08, Aperture, Logic Express, Final Cut Express		 • 4GB Memory Upgrade (two 2GB)
• 500GB or 750GB Hard Drive
• Apple Wireless Keyboard
• Wireless Mighty Mouse
• Apple USB Modem
• Software: iWork ’08, Aperture, Logic Express, Final Cut Express		 • 3.06GHz Intel Core 2 Duo
• NVIDIA GeForce 8800 GS with 512MB GDDR3 Memory
• 4GB Memory Upgrade (two 2GB)
• 500GB, 750GB, or 1TB Hard Drive
• Apple Wireless Keyboard
• Wireless Mighty Mouse
• Apple USB Modem
• Software: iWork ’08, Aperture, Logic Express, Final Cut Express
Limited warranty and service Your iMac comes with 90 days of free telephone support and a one-year limited warranty. Purchase the AppleCare Protection Plan to extend your service and support to three years from your computer’s purchase date. Only the AppleCare Protection Plan provides you with direct telephone support from Apple technical experts and the assurance that repairs will be handled by Apple-authorized technicians using genuine Apple parts. For more information, visit Apple support or call 800-823-2775.
Recycling Apple takes a holistic view of materials management and waste minimization.
  1. Weight varies by configuration and manufacturing process.
  2. Wireless Internet access requires a wireless access point and Internet access; fees may apply.
  3. Adapters are sold separately.
  4. 1GB = 1 billion bytes and 1TB = 1 trillion bytes; actual formatted capacity less.