Please offer some suggestions as to how I can speed up my computer. I have a considerably large 3D model (40 MB). It takes something like 20 seconds to pan/zoom in & zoom out. Plotting is a pain in the neck. I am prepared to spend on a higher capacity machine or a major upgrading. What should I go for? 

My present system:

  • OS:                                            Windows 7 Professional (64 bit)

  • Ram:                                         12 GB

  • Computer model:                        HP 2-420 Workstation

  • Processor:                                  Intel (R) Xeon (R) CPU E5-1620-0 @ 3.60 GHz

  • Graphic card:                              NVIDIA Quadro 600 (total memory= 2764 MB)