Dell Precision Tower T3620 Tower Workstation  # DDR4 Support # Intel Xeon E3x1225 V5 # 2GB Nvidia Quadro K620 Graphics Card # Best For Autocad Work or 3D Work

HP Workstation Z440 Tower Desktop # DDR4 Support # Intel Xeon E5 1620 V3 # Best For Autocad Work, 3D Work, and rendering

For Rendering, Auto Cad, 3D Max  # Nvidia Quadro K2000 Graphics ( DDR5 2GB)

3.5 GHz # Best Rendering Machine # Best for 3D Max, CAD

 Intel Xeon E5 1603 # Best For Autocad Work or 3D Work and designing work

 Intel Xeon E3 1220 V3 # Best For Autocad Work or 3D Work and designing work

 Intel Xeon E5 2620 V3 (Dual Processor) # 12 Cores, 24 Threads # Best For Autocad Work, 3D Work, and rendering