Purchased it brand new for over $3,000. This is the top of the line and highest spec'ed Microsoft Surface Book with Performance Base is built for power. Featuring an Intel Core i7 processor, NVIDIA GeForce GTX 965M 2GB GDDR5 memory and a 512GB solid state drive. It is ultra-thin, meticulously crafted, with an incredible 13.5” PixelSense touch-screen display with 3000 x 2000 resolution detachable. Up to 16 hours of battery life for video playback keeps you going all day. Use the included Surface Pen to mark-up presentations, sign documents, take notes and much more. Surface Book with Performance Base speeds through intensive professional software, like SolidWorks 3D CAD, AutoCAD Revit, and Adobe Premiere Pro.