We are in the process of spec'ing out a system to virtualize our data center. We are looking at a 4 blade system with dual E5-2620 v4 (8 core) and 386 GB RAM per blade. During this process someone on our team suggested going to a single processor (E5-2683 v4 16 core) and same amount of memory. This would save us approx $25,000 on licensing of VMWare and Veeam (per processor licensing) when you consider a second identical setup for DR.
All the vendors don't want to spec out the single processor setup, but cannot give an exact reason why. We are trying to do our due diligence on this single proc idea since the saving would be considerable.
Can anyone give us a technical reason why we shouldn't go with single processor blades (e.g. performance) and why?
FYI - The blades would support 386 GB RAM in a single proc setup.