Apple iMac 27-inch 2.7GHz Thunderbolt review

Reviews 25 May, 2011 Alan Lu

The most desirable of Apple's desktop computers has been updated with Sandy Bridge processors and dual Thunderbolt ports, but are these enough to justify the high price? Read on to find out in our review.

4
Price: 
£1,119
ex VAT
Verdict: 
We became quite fond of the 27in iMac and it's easy to see why, from its sleek design, quiet operation, and its huge, high quality, high resolution screen. Apart from the increased performance, the main difference between this model and its immediate predecessor is the presence of Thunderbolt. Unfortunately, there aren't any Thunderbolt peripherals available yet. Although the dual Thunderbolt ports also allow the use of two additional monitors, effectively turning the iMac into a compact workstation, if you need extra monitors and have the space for them then it's also likely you have the space for a cheaper, more flexible tower PC that can accommodate even more external displays. Nevertheless, if you need a powerful yet compact computer, then the 27in iMac is the one to get as it's the best all-in-one yet, but think carefully about whether you really need it or can get away with a more traditional tower computer.

Although we tend to be big fans of Apple's laptop range, we've traditionally been more sceptical about the benefits of desktop Macs. There's less scope on a stationary desktop computer for the many thoughtful design touches which make the MacBook Pro and Air models more useful and more pleasurable to use, but Apple has somehow managed to squeeze in a few which make this iMac the best one yet.

Versions of the 27in iMac has been around for about a year now, but we're still impressed by the massive screen with its staggeringly high resolution of 2,560 x 1,440 pixels. That's high enough to view four A4 pages side-by-side with ease. Image quality hasn't been ignored either with exceptionally bright, accurate colours and wide viewing angles. The glossy finish does reflect light very easily causing glare, but the iMac can be easily tilted and swivelled single-handed so you should be able to find a comfortable viewing angle.

We're still impressed by the massive screen with its staggeringly high resolution of 2,560 x 1,440 pixels. That's high enough to view four A4 pages side-by-side with ease.

If the huge screen still isn't enough, this iMac is the first that can accommodate two external displays – previous models were limited to just one. This is thanks to the two Thunderbolt ports which can connect to external displays, TVs and projectors using HDMI and DVI adapters which are sold separately. Each Thunderbolt port can also be used to connect up to five other extremely fast storage peripherals, but sadly none of these are available yet.

All of the iMac's ports, including the dual Thunderbolt connectors, are located round the back on the lower right hand side.

There are plenty of other ports for connecting peripherals though. There's a FireWire 800 port and four USB2 ports, all of which are available for use since the iMac comes as standard with a Bluetooth wireless keyboard and mouse. There's also a SDXC memory card slot next to the slot-loading DVD writer for using high-capacity memory cards. All the ports are located on the rear near the lower right hand side, which means you'll have to swivel the iMac round to access them which may not be ideal depending on your workspace.

Specifications: 

Processor: Intel Core i5 2500S, 2.7GHz

Memory: 4GB MHz DDR3 RAM

Graphics: 512MB ATI Radeon HD 6770M

Hard disk: 1TB hard disk

Display: 27in 2,560 x 1,440, LED-backlit screen

Features: microphone, stereo speakers

Connectivity: 802.11a/b/g/n Wi-Fi, Gigabit Ethernet, Bluetooth 2.1+EDR

Ports: 4 x USB2, 2x Thunderbolt, 1 x FireWire 800

Slots: 1 x SDXC

Dimensions: 650x207x520mm (WxDxH)

Warranty: 1 year C&R or customer carry-in warranty

OS: Apple MacOS X 10.6 Snow Leopard

BENCHMARKS

Image 94

Video 80

Multi 85

Overall 85

COD4 1680x1050 51.3fps

POWER CONSUMPTION

Standby: 5W

Idle: 135W

Active: 187W