Xeon E3-1276 v3 3.6GHz Quad-Core S1150 CPU
3.6GHz 4 Core - 8 Threads - 4.0GHz Turbo - Socket LGA 1150 / H3 - 4 x 256KB L2 Cache - 8MB L3 Cache - Intel HD Graphics P4600 350-1200MHz Integrated GPU - 84W TDP - Intel VT-x / VT-d Virtualization - Haswell 22nm - Retail Box w/ Heatsink & Fan
Xeon E5-2658 v4 2.3GHz 14-Core (Tray)
2.3GHz 14 Core - 28 Threads - 2.8GHz Turbo - Socket LGA 2011-v3 / R3 - 2-Way SMP - Supports DDR4-2400 Memory - 14 x 256KB L2 Cache - 35MB L3 Cache - 105W TDP - Intel VT-x / VT-d Virtualization - Broadwell-EP 14nm - OEM/TRAY w/o Heatsink & Fan