12 CORE COMPUTER HP Z800 Workstation - 2 x SIX CORE Xeon 2.93GHz - 2 x *NEW* 2TB 7200RPM HDD 512GB SSD- 48GB DDR3 RAM - WIFI - Quad Video Output - DVD-RW - Windows 7 Pro 64-Bit Operating System 2 x SIX CORE Xeon 2.93GHz up to 3.33GHz (Max Turbo Frequency). 2 x *NEW* 2TB 7200RPM HDD + 512GB SSD, 48GB DDR3 RAM, Windows 7 Pro 64-Bit Operating System, 24 Hyperthreads. GTX 960 4GB Nvidia GeForce 4K 1 X HDMI, 1 X DVI-I, 3 X Display, 4 Monitor Support. video card great for High-end gaming and Video Editing and Photo Editing. DX12 OSD Support