Utilising an Intel quad-core i5 processor and featuring a professional-spec graphics card in the form of an NVIDIA Quadro K620, the Terra 100 is great for programs such as Photoshop, Illustrator and AutoCAD. Improving on the Terra 100 by providing a faster processor (which can be overclocked later) and faster RAM, the Terra 200 gives you increased performance in your image editing and CAD programs. With 16GB of super-fast DDR4 and a much more powerful professional graphics card in the form of the NVIDIA Quadro K2200, the Terra 300 has improved capacity and support for four monitors! Featuring the top-of-the-range Intel Core i7-6700K processor, 16GB of super-fast DDR4 memory and the powerful NVIDIA Quadro K2200 professional graphics card, the Terra 400 is the ultimate photo editing and CAD design machine.