This is a single-threaded task within Maya. Unlike rendering, which is highly multi-threaded, the process of building up your meshes, extruding polygons and manipulating vertices only uses one CPU core. If you primarily use 3ds Max for modeling, then don’t waste money on a dual CPU workstation with dozens of CPU cores – because those extra CPU cores won’t help you.
A workstation with a high frequency CPU will benefit your 3D modeling workflow. Safely overclocked BOXX APEXX workstations are a great choice for this type of workflow.