Alienware Aurora-R3 Gaming Machine - Intel i7-2600 Quad-core Overclocked Turbo Boost to 3.9GHz, 8GB Ram, 1TB HDD, Blu-ray Reader, 1GB GT545 Graphics Dual 1GB GDDR5 Nvidia GeForce GT 545 - SLI Enabled 16GB Dual Channel DDR3 at 1333MHz (4X4GB), 4 DIMMs Intel Core i7-2600K (8MB Cache) Overclocked Turbo Boost to 4.1GHz Dual Drives: Blu-ray Disc (BD) Burner (Writes to DVD/CD/BD) and DVDRW 1TB SATA 3Gb/s (7,200RPM) 32MB Cache