Would it be more beneficial to have a six-core processor or a quad core processor when running autocad and inventor 2013? Note that inventor is not being used for FEA or 1,000 part assemblies, only more basic assemblies and complex parts. While autocad is being used for multi-layer drawings mainly for prints.
Also would it be necessary to have any more than 8 GB of RAM, and what's the best graphics card to be used?