Something to consider with a VRTX is that that is eight to sixteen Intel Xeon CPUs in a loaded chassis. That is a massive amount of compute power (with very little storage throughput.) So you have the CPU power to handle easily ~400 typical VMs. But the storage capacity and throughput of no more than an R510. Even an R720xd or R730xd has more drive capacity than the VRTX. So the ratio of IOPS and capacity to CPU is wildly different than with normal servers.
