2x Intel Xeon Quad-Core (2.26GHz, 8MB L3), 8GB (4 x 2GB) DDR3 SDRAM, 1TB SATA 7200 rpm, SuperDrive DVD±RW DL, ATI Radeon HD 4870 512MB GDDR5, AirPort Extreme Wi-Fi 802.11n, Bluetooth 2.1 + EDR, Mac OS X v10.5 Leopard