Alienware Area-51 Gaming Machine - Intel Core i7-5820K 6-cores Overclocked up to 3.8GHz, 16GB DDR4 Ram, 2TB SSD + 18TB HDD, DVD Burner, 2 x NVIDIA GeForce GTX TITAN Z with 24GB (2x 12GB) GDDR5 - Dual GPU Card, Windows 8.1 Professional