Apple iMac Core i5 2.66 27-Inch (Late 2009)

An Attractive Option for Professionals and Casual Users Alike

The powerful iMac series of all-in-one desktop computers shines brightly in Apple’s lineup as yet another feat of versatility and performance. Arguably one of the most elegant, aesthetically pleasing desktops in existence, the iMac has since its genesis been an attractive option for professionals and casual users alike.

Available over the years in 17″, 20″, 24″, and more recently 21.5″ and 27″ display sizes, with screaming fast Intel processors, top-of-the-line consumer graphics options, and plenty of RAM and hard drive configurations, the iMac can be configured to excel at nearly any task.

From graphic design to programming, from video editing to writing, from business to photography, and — yes — even gaming! The iMac’s have more than enough display space that even the avid multitasker will feel at home, and its sheer speed and power won’t fail to please those engaged in intensive work or play. 

When the recent, tapered edge iMacs were released and Apple decided to forgo inclusion of an optical disk drive in further models, they also saw fit to make it significantly more difficult to upgrade the RAM and hard drive. However, this resulted in a far sleeker and more aesthetically pleasing case design.

Perfect for the home and the office, the iMac has seen heavy use in nearly every avenue of personal computing.

Stable, sleek, versatile — the iMac is yet another example of Apple’s transcendent, artfully engineered personal computers.

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Full Technical Specs of this Model

The iMac Core i5 2.66 27-Inch Aluminum (Late 2009) is powered by a 2.66 GHz Quad Core Intel Core i5 I5-750 (Lynnfield/Nehalem) processor with a 256k level 2 cache for each core and an 8 MB shared level 3 cache.

It is configured with 4 GB of RAM (1066 MHz PC3-8500 DDR3 SDRAM), a 1 TB (7200 RPM) hard drive, a vertically-mounted slot-loading DVD±R DL SuperDrive, and ATI Radeon HD 4850 graphics with 512 MB of dedicated GDDR3 memory.

It also has a built-in iSight video camera and built-in stereo speakers beneath the beautiful 27″ glossy 16:9 LED-backlit TFT Active Matrix LCD (2560×1440 native) display with IPS technology.

Connectivity includes a Firewire 800 port, four USB 2.0 ports, built-in AirPort Extreme, and Gigabit Ethernet, as well as a Mini DisplayPort, which supports an external display up to 30″ (2560×1600). This model is also supportable of input from external DisplayPort sources with adapters, so it can be used as an external display for DisplayPort-equipped devices as well as a computer.

The Late 2009 iMac line looks similar to earlier Aluminum iMac models but have an edge-to-edge glass design and a seamless all aluminum enclosure.

The displays are enhanced with LED-backlighting and IPS technology for improved quality. Internally, each has four RAM slots supporting up to 16 GB of RAM, rather than two slots and 8 GB of RAM for earlier models. All Late 2009 models include an SD Card slot and redesigned speakers that promise clearer sound with better bass response and less distortion.


2.66 GHz Core i5 (I5-750)
4 GB 32 GB
Radeon HD 4850 GDDR3
Details: This model has an ATI Radeon HD 4850 graphics processor with 512 MB of dedicated GDDR3 memory.
512 MB 512 MB
Details: 512 MB of dedicated GDDR3 video memory.
27″ 16:9 Widescreen 2560×1440
Details: This model has a 27″ glossy LED-backlit 16:9 widescreen TFT active matrix display with “IPS technology” and a native resolution of 2560×1440. Apple also reports a “typical” brightness of 375 cd/m2, and viewing angle of 178 degrees horizontal and 178 degrees vertical. The contrast ratio is 1000:1 and the PPI is 109.
Dual/Mirroring 2560×1600
Details: Apple reports that this model simultaneously supports the native resolution of the built-in display and up-to a 30-inch external display (2560×1600).
1 TB (7200 RPM) Serial ATA (3 Gb/s)
8X DL “SuperDrive” None
None 10/100/1000Base-T
Details: N/A
802.11a/b/g/n 2.1+EDR
4 (2.0) 1 (800)
SD Card None
Details: N/A
Apple Wireless Keyboard Magic Mouse
All-in-One iMac (Late 2009)
MB953LL/A Late 2009
A1312 (EMC 2374) iMac11,1
Details: Please note that these identifiers often refer to more than one model.Also see: All Macs with the A1312 Model Number, the 2374 EMC Number, and the iMac11,1 Model Identifier.
X 10.6.2 (10C2234) Current
Original Price (US): $1999

Rating overview

  • Design
  • Versatility
  • Quality
Total score
Good 4.7

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