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What are the differences between the original "Aluminum" iMac Core 2 Duo models?
Please note that all models mentioned in this Q&A have been discontinued. The "Aluminum" iMac Core 2 Duo systems were replaced by the "Early 2008/Penryn Aluminum" iMac Core 2 Duo line on April 28, 2008.
The original "Aluminum" iMac Core 2 Duo models feature "elegant" aluminum cases and have a glass cover that "joins precisely to the aluminum enclosure creating a virtually seamless front surface" -- compared to white plastic cases used by the models these replaced -- but with a similar overall design aesthetic with the entire computer tucked discreetly behind the flat-panel display.
Photo Credit: Apple, Inc.
All the original "Aluminum" iMac Core 2 Duo models -- the iMac "Core 2 Duo" 2.0 20-Inch (Al), "Core 2 Duo" 2.4 20-Inch (Al), "Core 2 Duo" 2.4 24-Inch (Al), and "Core 2 Extreme" 2.8 24-Inch (Al) -- have glossy displays, Intel "Core 2 Duo" or "Core 2 Extreme" processors -- with two independent processor "cores" on a single silicon chip and a 4 MB shared level 2 cache -- an 800 MHz system bus, and support for 4 GB of 667 MHz PC2-5300 DDR SDRAM.
These systems also share vertically mounted slot-loading DVD+R DL "SuperDrives," built-in iSight video cameras, three USB 2.0 ports, a Firewire "400" port, and a Firewire "800" port, built-in AirPort Extreme (802.11n), Bluetooth 2.0+EDR, and Gigabit Ethernet, as well as mini-DVI. Each system has a 7200 RPM hard drive as well.
All differences between the standard configurations of the systems are summarized in this handy chart:
|iMac Core 2 Duo (Al)||2.0 20"||2.4 20"||2.4 24"||2.8 24"|
|Processor Speed:||2.0 GHz||2.4 GHz||2.4 GHz†||2.8 GHz|
|Hard Drive Size:||250 GB||320 GB||320 GB||500 GB|
|Standard RAM:||1 GB*||1 GB*||1 GB*||2 GB|
|Video System:||HD 2400 XT||HD 2600 PRO||HD 2600 PRO||HD 2600 PRO|
|Video Memory:||128 MB||256 MB||256 MB||256 MB|
|Optical Drive:||DVD+R DL||DVD+R DL||DVD+R DL||DVD+R DL|
|Apple Model No:||MA876LL||MA877LL||MA878LL||N/A|
† A 2.8 GHz "Core 2 Extreme" processor was also available as a build-to-order option for US$250.
* Installed as a single 1 GB module by default. Maximum capacity of 4 GB.