Intel Xeon E5-2690 v3 Processor Benchmarks and Specs - GadgetVersus
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. :
HP ProLiant DL380p Server - 2x Intel Xeon E5 2690 - Cinebench - Benchmark - YouTube