SSAS Tabular performance - NUMA update

How does the SSAS 2012 Tabular model performance change when you add more CPU sockets / NUMA nodes? In my last post (SSAS Tabular NUMA and CPU Cores Performance) I presented the results of some testing I'd been doing on the scalability of the SSAS 2012 Tabular model. Specifically with the performance of distinct count measures over large data volumes (50-200m distinct customers).