Technical Specifications
Size and weight
21.5-inch iMac
- Height:
- 45.1 cm (17.75 inches)
- Width:
- 52.8 cm (20.8 inches)
- Depth:
- 18.85 cm (7.42 inches)
- Weight:
- 9.3 kg (20.5 pounds)1
27-inch iMac
- Height:
- 51.7 cm (20.4 inches)
- Width:
- 65.0 cm (25.6 inches)
- Depth:
- 20.7 cm (8.15 inches)
- Weight:
- 13.8 kg (30.5 pounds)1
Connections and expansion
- One FireWire 800 port; 7 watts
- Four USB 2.0 ports
- SD card slot
Communications
Built-in AirPort Extreme 802.11n Wi-Fi wireless networking;2 IEEE 802.11a/b/g compatible
Built-in Bluetooth 2.1 + EDR (Enhanced Data Rate)- Built-in 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)
Audio
- Built-in stereo speakers
- Two internal 17-watt high-efficiency amplifiers
- Headphone/optical digital audio output (minijack)
- Audio line in/optical digital audio input (minijack)
- Built-in microphone
- Support for Apple Stereo Headset with microphone
Environmental Status Report
iMac is designed with the following features to reduce its environmental impact:
- Arsenic-free display glass
- BFR-free
- PVC-free5
- Highly recyclable aluminium and glass enclosures
- Meets ENERGY STAR 5.0 requirements
- Rated EPEAT Gold
Display
Built-in 21.5-inch (viewable) or 27-inch (viewable) LED-backlit glossy widescreen TFT active-matrix liquid crystal display with IPS technology- Resolution
- 21.5-inch models: 1920 by 1080 pixels
- 27-inch models: 2560 by 1440 pixels
- 16:9 aspect ratio
- Millions of colours at all resolutions
- Typical viewing angle: 178° horizontal; 178° vertical
- Typical brightness: 320 cd/m2 (21.5-inch models); 375 cd/m2 (27-inch models)
- 27-inch model can be attached to a wall mount, articulating arm, or other VESA-compliant mounting solution using the optional VESA Mount Adapter Kit
Graphics and video support
- 21.5-inch models, one of the following:
- NVIDIA GeForce 9400M graphics processor with 256MB of DDR3 SDRAM shared with main memory3
- ATI Radeon HD 4670 graphics processor with 256MB of GDDR3 memory
- 27-inch model with dual-core processor, one of the following:
- ATI Radeon HD 4670 graphics processor with 256MB of GDDR3 memory
- ATI Radeon HD 4850 graphics processor with 512MB of GDDR3 memory
- 27-inch model with quad-core processor:
- ATI Radeon HD 4850 graphics processor with 512MB of GDDR3 memory
Built-in iSight camera- Mini DisplayPort output port with support for DVI, VGA and dual-link DVI (adapters sold separately). 27-inch models also support input from external DisplayPort sources (adapters sold separately).
- Support for extended desktop and video mirroring modes
- Simultaneously supports full native resolution on the built-in display and up to a 30-inch display (2560 by 1600 pixels) on an external display
Software
- Mac OS X v10.6 Snow Leopard (includes iTunes, Time Machine, Quick Look, Spaces, Spotlight, Dashboard, Mail, iChat, Safari, Address Book, QuickTime, iCal, DVD Player, Photo Booth, Front Row, Xcode Developer Tools)
- iLife (includes iPhoto, iMovie, iDVD, iWeb, GarageBand)
Processor and memory
- 21.5-inch and 27-inch models, one of the following:
- 3.06GHz Intel Core 2 Duo processor with 3MB shared L2 cache
- 3.33GHz Intel Core 2 Duo processor with 6MB shared L2 cache
- 27-inch models only, one of the following:
- 2.66GHz quad-core Intel Core i5 processor with 8MB shared L3 cache; Turbo Boost dynamic performance up to 3.2GHz
- 2.8GHz quad-core Intel Core i7 processor with 8MB shared L3 cache; Turbo Boost dynamic performance up to 3.46GHz; Hyper-Threading for up to eight virtual cores
- 4GB (two 2GB SO-DIMMs) of 1066MHz DDR3 SDRAM; four SO-DIMM slots support up to 16GB
Configure your iMac now, only at the Apple Online Store.
Storage4
- 21.5-inch models:
- 500GB or 1TB 7200-rpm Serial ATA hard drive
- Optional 2TB 7200-rpm Serial ATA hard drive
- 27-inch models:
- 1TB 7200-rpm Serial ATA hard drive
- Optional 2TB 7200-rpm Serial ATA hard drive
Configure your iMac now at the Apple Online Store 
Configurable options
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: 241W (21.5-inch models); 365W (27-inch models)
- Operating temperature: 10° to 35° C (50° to 95° F)
- Storage temperature: -20° to 47° C (-4° to 116° F)
- Relative humidity: 5% to 95% noncondensing
- Maximum altitude: 3,000 m (10,000 feet)
- Typical acoustical performance
- Sound pressure level (operator position): 18 dBA at idle6
What’s included
In the box:
- iMac
- Apple Wireless Keyboard
- Magic Mouse
- Cleaning cloth
- Power cord
- Install/restore DVDs
- Printed and electronic documentation
Included software:
Mac OS X Snow Leopard
Includes iTunes, Time Machine, Quick Look, Spaces, Spotlight, Dashboard, Mail, iChat, Safari, Address Book, QuickTime, iCal, DVD Player, Photo Booth, Front Row, Xcode Developer Tools and more. Learn more about Mac OS X Snow Leopard
iLife
Includes iPhoto, iMovie, GarageBand and iWeb. Learn more about iLife
Accessories
Displays and Graphics
Configurations See detailed pricing and configurations
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| 21.5-inch iMac | 21.5-inch iMac | 27-inch iMac | 27-inch iMac | |
| Processor | 3.06GHz Intel Core 2 Duo | 2.66GHz Intel Core i5 (quad core) | ||
| Cache | 3MB shared L2 cache | 8MB shared L3 cache | ||
| Frontside bus | 1066MHz | — | ||
| Memory | 4GB (two 2GB SO-DIMMs) of 1066MHz DDR3 SDRAM; supports up to 16GB | |||
| Hard drive | 500GB Serial ATA4; 7200 rpm | 1TB Serial ATA4; 7200 rpm | ||
| Optical drive | Slot-loading 8x SuperDrive with 4x double-layer burning (DVD±R DL/DVD±RW/CD-RW) | |||
| Display | 21.5-inch (viewable) LED-backlit glossy 16:9 widescreen TFT active-matrix display; 1920 by 1080 pixels; millions of colours; IPS technology | 27-inch (viewable) LED-backlit glossy 16:9 widescreen TFT active-matrix display; 2560 by 1440 pixels; millions of colours; IPS technology | ||
| Video | Built-in iSight camera; Mini DisplayPort output with support for DVI, dual-link DVI and VGA video (requires adapters, sold separately) | Built-in iSight camera; Mini DisplayPort output with support for DVI, dual-link DVI and VGA video (requires adapters, sold separately); supports input from external DisplayPort sources (requires cables and adapters, sold separately) | ||
| Graphics | NVIDIA GeForce 9400M with 256MB of DDR3 SDRAM shared with main memory3 | ATI Radeon HD 4670 with 256MB of GDDR3 memory | ATI Radeon HD 4850 with 512MB of GDDR3 memory | |
| FireWire | One FireWire 800 port; 7 watts | |||
| USB | Four USB 2.0 ports | |||
| SD Card | SD card slot | |||
| Audio | Built-in stereo speakers with two internal 17-watt high-efficiency amplifiers, 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 Wi-Fi wireless networking2; built-in Bluetooth 2.1 + EDR (Enhanced Data Rate) | |||
| Included accessories | Apple Wireless Keyboard and Magic Mouse | |||
| Other | Built-in IR receiver | Built-in IR receiver, optional VESA Mount Adapter Kit | ||
| Configure-to-order options |
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| 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-authorised technicians using genuine Apple parts. For more information, visit Apple support or call 0844 209 0611. | |||
| Apple and the global environment | Learn more about Apple’s dedication to reducing the environmental impact of our products and process. | |||
| Recycling | Apple takes a holistic view of materials management and waste minimisation. | |||
