Apple iMac MD063LL/A Intel Core i7-2600 X4 3.4GHz 4GB 2TB DVD+/-RW 27'',Silver Intel Core i7-2600 3.4GHz; 2000GB SATA; 4GB DDR3 27" LED; 2560 x 1440; AMD Radeon HD 6970M Graphics 802.11A,802.11B,802.11G,802.11N; Bluetooth 2.1 + EDR All-in-One; SuperMulti-DVD Burner; Apple Mac OS X 10.6 Dedicated AMD Radeon HD 6970M Graphics (1.0GB Dedicated Video Memory)