My team and I have been doing some work lately with the difference in performance between AOS 4.7 and AOS 5.0 with regards to Oracle DB's, both RAC and single instance, on Nutanix NX9060G4 systems, so not the latest, but not that old either. I posted the results on my blog but thought you may also be interested.
These were done in a controlled environment so real world results will be different. But I was not pushing the system to maximum performance during these tests. I was more focused on moderate workload and low latency, and more importantly scalability as you add VM's and nodes, which is a great benefit of our platform. It's predictable and consistent experience as you scale.