Xeon E5-4655 v4 2.5GHz Eight-Core (Tray)
2.5GHz 8-Core - 16 Threads - 3.2GHz Turbo - Socket LGA 2011-v3 / R3 - 4-Way SMP - Supports DDR4-2133 Memory - 8 x 256KB L2 Cache - 30MB L3 Cache - 135W TDP - Intel VT-x / VT-d Virtualization - Broadwell-EP 14nm - OEM/TRAY w/o Heatsink & Fan
Xeon E5-2407 2.2GHz Quad-Core
2.2GHz 4-Core - Socket LGA 1356 / B2 - 2-Way SMP - 4 x 256KB L2 Cache - 10MB L3 Cache - 80W TDP - Intel VT-x / VT-d Virtualization - Sandy Bridge-EN 32nm - Retail Box w/o Heatsink & Fan
Xeon E3-1225 v2 3.2GHz Quad-Core
3.2GHz 4-Core - 3.6GHz Turbo - Socket LGA 1155 / H2 - 4 x 256KB L2 Cache - 6MB L3 Cache - Intel HD Graphics P4000 650-1250MHz Integrated GPU - 77W TDP - Intel VT-x / VT-d Virtualization - Interlagos 32nm - Retail Box w/ Heatsink & Fan