However, WiFi is not supported on this device. The Early 2008 iMacs support OS X 10.11 El Capitan.Īlthough it is not officially supported, the Early 2008 iMac can run macOS Sierra using Colin Mistr’s Sierra Patch Tool. The Early 2008 iMac ships with Mac OS X 10.5.2 Leopard and iLife ’08. The 2.66 GHz model ships with 2 GB of RAM, a 320 GB hard drive, and use Radeon HD 2600 Pro graphics. The 20″ 2.4 GHz iMac has 1 GB of RAM, a 250 GB hard drive, an 8x SuperDrive, Radeon HD 2400 XT graphics, AirPort Extreme, Bluetooth, and Apple’s aluminum keyboard and Mighty Mouse. This was the last iMac to use an Ultra ATA interface for its optical drive.
The aluminum iMacs have three USB 2.0 ports, FireWire 400 and 800 ports, gigabit ethernet, 802.11n WiFi, Bluetooth 2.1+EDR, and an 8x SuperDrive – as well as a slim keyboard with USB 2.0 ports.
The Early 2008 iMac has also moved from the 800 MHz system bus in the Mid 2007 iMac to 1066 MHz, and clock speeds on the 20″ model range from 2.4 GHz to 2.66 GHz.
Apple updated the iMac with Intel’s more efficient Penryn processor in April 2008, which has a larger Level 2 cache and includes the SSE4.1 instruction set.
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