CPU-Z Benchmarks on various Synology models - Hope this helps give a rough idea of the CPU power difference between models. Also included 2 other VMs running on Windows Hyper-V Server. :
Intel Xeon E3-1220 v6 in 9 benchmarks. Review & Testing, CPU Benchmarks Hierarchy, best processors for gaming and programming
Xeon E-2126G vs Xeon W-2102 The Talos Principle Benchmarks - CPUAgent