Xeon E3-1275 v5 3.6GHz Quad-Core (Tray)
3.6GHz 4-Core - 8 Threads - 4.0GHz Turbo - Socket LGA 1151 / H4 - 1-Way SMP - Supports DDR3L-1600/DDR4-2133 Memory - 4 x 256KB L2 Cache - 8MB L3 Cache - Intel HD Graphics P530 400-1150MHz Integrated GPU - 80W TDP - Intel VT-x/VT-d Virtualization - Skylake-DT 14nm - OEM w/o Heatsink & Fan - No Mfg. Warranty
Xeon E5-4640 v2 2.2GHz Ten-Core (Tray)
2.2GHz 10-Core - 20 Threads - 2.7GHz Turbo - Socket LGA 2011 / R - 4-Way SMP - Supports DDR3-1866 Memory - 10 x 256KB L2 Cache - 20MB L3 Cache - 95W TDP - Intel VT-x/VT-d/VT-c Virtualization - Ivy Bridge-EP 22nm - OEM w/o Heatsink & Fan - No Mfg. Warranty