Intel Xeon E3-1220 V2 | Processor benchmarks | PC Builds
Used Intel Xeon E3 1220 V2 Processor 3.1GHz 8MB 4 Core 1333MHz SR0PH LGA 1155 CPU - AliExpress
Intel Xeon E3-1220 Sandy Bridge Benchmarks and Review
CPU Benchmark puts 3900x on top! : r/Amd
Intel Xeon E3-1220 Handbrake Transcode CPU Comparison - ServeTheHome
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 E3-1240 Sandy Bridge Benchmarks and Review