how can I tell how many processors and cores on a server

I was asked to inventory the number of core processors in 300 servers.  How can I tell how many processors there are and how many cores are on each processor?  I would prefer not to have to open each server.  Example: Task manager shows usage for 8 processors.  How can I tell is there are 4 dual core or 2 quad core processors.  I tried looking at device manager, but that only shows me the number of cores.  I tried using Newt 2.0 to scan, but again, I only get the number of cores in each server.  Managment has asked me to provide both the number of processors and cores with a 100% accuracy.  Thanks for any ideas on this.