Mainframe migration sizing study published in the Microsoft Azure site (click here).
The following is an excerpt.
Executive Summary
In June 2020, TmaxSoft and Microsoft completed a sizing study using the TmaxSoft mainframe modernization solution, OpenFrame, running on Microsoft Azure Infrastructure as a Service. TmaxSoft ran the CICS COBOL Reference application (zRef) workload, which was previously run on an IBM Z mainframe.