Apple iMac Core i5 3.1 27-Inch (Mid-2011)

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 3.1 27-Inch Aluminum (Mid-2011) is powered by a Quad Core 3.1 GHz Intel Core i5 I5-2400 (Sandy Bridge) processor with a 256k level 2 cache for each core and a 6 MB shared level 3 cache. Instead of a system bus, it has a Direct Media Interface (DMI) that connects between the processor and chipset at 5 GT/s.

It is configured with 4 GB of RAM (1333 MHz PC3-10600 DDR3 SDRAM), a 1 TB (7200 RPM) hard drive, a vertically-mounted slot-loading DVD±R DL SuperDrive, and AMD Radeon HD 6970M graphics with 1 GB of dedicated GDDR5 memory.

It has a built-in FaceTime HD video camera and built-in stereo speakers underneath 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, Gigabit Ethernet, and an SDXC card slot as well as dual Thunderbolt ports. Each supports an external display up to 30″ (2560×1600). Thunderbolt supports other peripherals that use the Thunderbolt standard which provides up to 10 Gbps of bandwidth in both directions.

The Mid-2011 iMac line uses the same edge-to-edge glass design and seamless all aluminum enclosure as the Mid-2010 models. Internally, the Mid-2011 line is equipped with faster processors and faster graphics processors.


3.1 GHz Core i5 (I5-2400)
4 GB 32 GB
Radeon HD 6970M GDDR5
Details: By default, this model has an AMD Radeon HD 6970M graphics processor with 1 GB of dedicated GDDR5 memory. By custom configuration, the same graphics processor can be equipped with 2 GB of dedicated GDDR5 memory for an extra US$100.
1 GB 2 GB
Details: By default, this model has 1 GB of dedicated GDDR5 video memory. At the time of purchase, it can be upgraded to 2 GB of dedicated GDDR5 video memory for an additional US$100.
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 viewing angle of 178 degrees horizontal and 178 degrees vertical. The contrast ratio is 1000:1.
Dual/Mirroring (x2) 2560×1600
Details: Apple reports that this model simultaneously supports the native resolution of the built-in display and up-to two 30-inch external displays (2560×1600) by using both Thunderbolt ports.
1 TB (7200 RPM) Serial ATA (6 Gb/s
8X DL “SuperDrive” None
None 10/100/1000Base-T
Details: N/A
802.11a/b/g/n (450 Mbit) 2.1+EDR
4 (2.0) 1 (800)
SDXC SD Card None
Details: This iMac has an extra 6 Gb/s Serial ATA connector and power for the optional SSD, but if one is not installed at the time the system is purchased the connector cables and mounting bracket are not present. Nevertheless, it is possible to install a 2.5″ SSD in addition to the hard drive if an SSD is not installed initially it’s just a bit of a “hack.”
Apple Wireless Keyboard Magic Mouse/Trackpad
All-in-One iMac (Late 2009)
MC814LL/A Mid-2011
A1312 (EMC 2429) iMac12,2
Details: Please note that these identifiers refer to more than one model.Also see: All Macs with the A1312 Model Number, the 2429 EMC Number, and the iMac12,2 Model Identifier.
X 10.6.6 (10J4026) Current
Original Price (US): $1999

Rating overview

  • Design
  • Versatility
  • Quality
Total score
Good 4.7

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