New iMacs arrive!

New iMacsAs predicted, Apple has announced a refresh of its iMac range of all-in-one desktop computers. As predicted in my earlier post, Apple has indeed gone with the AMD Radeon 6000 series GPU, only it has gone for a higher spec than I expected; 6750M or AMD Radeon HD 6770M in the entry-level models and HD 6770M or AMD Radeon HD 6970M in the 27″ models.

As expected, they have gone for the new Intel Sandy Bridge Quad Core i5 processors, only this time they have gone for slower clock speeds than I thought; 2.5 GHz quad-core Intel Core i5 or 2.7 GHz quad-core Intel Core i5 in the entry-level 21.5″ models (I thought they would go for 31.GHz and 3.3GHz respectively). They also went for 2.7 GHz quad-core Intel Core i5 or 3.1 GHz quad-core Intel Core i5 in the 27″ models, compared to 2.8GHz and 3.4GHz respectively as I suggested.

However, all models come with Thunderbolt as expected (single port in the 21.5″ models and two in the 27″ models), along with HD backlit LED screens (1920×1080 in the 21.5″ models and 2560×1440  in the 27″ models – a 78% more pixels compared to the 21.5″ models).

More detailed specifications:

  • Storage: 500GB or 1TB in 21.5″ models; 1TB in 27″ models. Configurable with 2TB or 256GB SSD in all but entry model.
  • Video & Canera:
    • FaceTime HD camera
    • Simultaneously supports full native resolution on the built-in display and up to a 30-inch display (2560×1600 pixels) on an external display
    • Support for extended desktop and video mirroring modes


  • Built-in stereo speakers
  • Two internal 17-watt high-efficiency amplifiers
  • Headphone / optical digital audio output (mini-jack)
  • Audio line in / optical digital audio input (mini-jack)
  • Built-in microphone
  • Support for Apple iPhone headset with microphone

Expansion ports:

  • One Thunderbolt port on 21.5-inch iMac
  • Two Thunderbolt ports on 27-inch iMac
  • Mini DisplayPort output with support for DVI, VGA and dual-link DVI (adapters sold separately)
  • One FireWire 800 port; 7 watts
  • Four USB 2.0 ports
  • SDXC card slot
  • Slot-loading 8x SuperDrive with 4x double-layer burning (DVD±R DL/DVD±RW/CD-RW)
  • Audio in/out
  • 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)
  • IR receiver

Wireless & Networking:

  • 802.11n Wi-Fi wireless networking;2 IEEE 802.11a/b/g compatible
  • Bluetooth 2.1 + EDR (Enhanced Data Rate) wireless technology
UK Prices:
  • 21.5″ 2.5GHz – £999 inc. VAT & free delivery
  • 21.5″ 2.7GHz – £1249 inc. VAT & free delivery
  • 27″ 2.7GHz – £1,399 inc. VAT & free delivery
  • 27″ 3.1GHz – £1,649 inc. VAT & free delivery

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