The iMac "Core i7" 2.8 27-Inch (Late 2009) originally was offered as a "build-to-order" configuration of the iMac "Core i5" 2.66 27-Inch (Late 2009), but it later was offered as a standard configuration, as well.Other than processor, these two models are identical.

The iMac "Core i7" 2.8 27-Inch Aluminum (Late 2009) is powered by a 2.8 GHz Quad Core Intel "Core i7" I7-860 (Lynnfield/Nehalem) processor with a dedicated 256k level 2 cache for each core and an 8 MB shared level 3 cache.

By default, it is configured with 4 GB of RAM (1066 MHz PC3-8500 DDR3 SDRAM), a 1 TB (7200 RPM) hard drive, a vertically-mounted slot-loading DVD�R DL "SuperDrive", and ATI Radeon HD 4850 graphics with 512 MB of dedicated GDDR3 memory.