Dell Precision T3500 Xeon W3530(8m Cache, 2.80 Ghz, 4.80 Gt/s) 12gb Memory 1.5tb Sata Hdd 16X DVD +/- RW Drive Nvidia Quadro Fx3700 Video Card Windows 7 Pro Intel Xeon 2.9GHz W3540 500GB HDD 6GB Ram Video Card Nvidia Quadro FX 570 No Windows Operating System Installed