Lenovo ThinkStation P520c Desktop: Complete engineering or construction design projects with this ThinkStation P520c tower workstation. The Intel Xeon processor paired with an NVIDIA Quadro P2000 graphics card let you create detailed 3-D models and run computer-aided engineering simulations. This ThinkStation P520c tower workstation features a 512GB M.2 NVMe SSD for rapid data access, and the 16GB of RAM supports seamless multitasking.