Performance difference of SAP HANA on virtualization versus native

I just researched how much the difference between a virtualized versus a native Installation of SAP HANA might be in terms of performance. When looking at the different sites, i was finally able to be find a blog entry of VMwareย  where the author describes the result of the SAP BW-EML Benchmark which was run on native and virtual environments using a HP DL580 Gen8, 4 processors with 60 cores / 120 threads. ...