Scientific and Synthetic Benchmarks: 2D to 3D, Emulation, Encryption - Intel Xeon E5-2697 v2 and Xeon E5-2687W v2 Review: 12 and 8 Cores
Dual Intel Xeon E5-2697 V4 Benchmarks - #3 in the lineup
Dual Intel Xeon E5-2690 Linux Benchmarks - Fast
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. :
Dual Intel Xeon E5-2690 Linux Benchmarks - Fast
Intel Xeon E5 2690 V2 Processor 3.0ghz 25m Cache Lga 2011 Sr1a5 Server Cpu - Cpus - AliExpress
X79 Dual Cpu Motherboard 2 Xeon | X79 Dual Processor Motherboard - X79 Dual Cpu - Aliexpress