Dell Precision M4600 Intel Quad 2820QM 2.3GHz 16GB RAM 320GB HDD DVDRW Windows 7 Professional 64-bit 15.6" 1920x1080 HD Ultra Sharp LED Display nVidia Quadro FX 1000M 2GB Dedicated RAM Memory Video Card Dell Precision M4600 Windows 7 Professional 64-bit Intel i7 Quad Core 2820QM 2.30GHz High Definition 15.6" LED HD 1920x1080 nVidia Video Card 2GB Dedicated RAM Memory