The imac "core 2 duo" 2.66 20-inch aluminum (early 2008/penryn) features a 2.66 ghz intel "core 2 duo" processor (e8335), with two independent processor "cores" on a single silicon chip, a 6 mb shared level 2 cache, a 1066 mhz system bus, 2 gb of ram (800 mhz ddr2 sdram, pc2-6400), a 320 gb (7200 rpm) serial ata hard drive, a vertically-mounted slot-loading dvd±r dl "superdrive", ati radeon hd 2600 pro graphics acceleration with 256 mb of gddr3 memory, a built-in isight video camera, and built-in stereo speakers underneath the 20" glossy tft active matrix lcd (1680x1050 native) display.
connectivity includes three usb 2.0 ports, a firewire "400" port and a firewire "800" port, built-in airport extreme, and gigabit ethernet, as well as mini-dvi, which supports an external display in "extended desktop" mode