Xeon E5-2640 v3 2.6GHz 8-Core 16-Threads S2011 90W CPU
2.6GHz 8-Core - 16 Threads - 3.4GHz Turbo - Socket LGA 2011-v3 / R3 - 2-Way SMP - 8 x 256KB L2 Cache - 20MB L3 Cache - 90W TDP - Intel VT-x / VT-d Virtualization - Haswell-EP 22nm - Retail Box w/o Heatsink & Fan - 3 Year Depot Carry-In Mfg. Warranty
Xeon E5-1680 v4 3.4GHz Eight-Core/16T 20MB LGA 2011-R3
3.4GHz 8-Core - 16 Threads - 4.0GHz Turbo - Socket LGA 2011-v3 / R3 - 1-Way SMP - Supports DDR4-2400 Memory - 8 x 256KB L2 Cache - 20MB L3 Cache - 140W TDP - Intel VT-x / VT-d Virtualization - Broadwell-EP 14nm - OEM/TRAY w/o Heatsink & Fan - No Mfg. Warranty