Xeon E5-2420 1.9GHz Six-Core (Tray)
1.9GHz 6-Core - 12 Threads - 2.4GHz Turbo - Socket LGA 1356 / B2 - 2-Way SMP - Supports DDR3-1333 Memory - 6 x 256KB L2 Cache - 15MB L3 Cache - 95W TDP - Intel VT-x / VT-d Virtualization - Sandy Bridge-EN 32nm - OEM/TRAY w/o Heatsink & Fan
Xeon E5-4648 v3 1.7GHz 12-Core (Tray)
1.7GHz 12-Core - 24 Threads - 2.2GHz Turbo - Socket LGA 2011-v3 / R3 - 4-Way SMP - Supports DDR4-1866 Memory - 12 x 256KB L2 Cache - 30MB L3 Cache - 105W TDP - Intel VT-x / VT-d Virtualization - Haswell-EP 22nm - OEM/TRAY w/o Heatsink & Fan
Xeon E5-4657L v2 2.4GHz 12-Core Low Power (Tray)
2.4GHz 12-Core - 24 Threads - 2.9GHz Turbo - Socket LGA 2011 / R - 4-Way SMP - Supports DDR3-1866 Memory - 12 x 256KB L2 Cache - 30MB L3 Cache - 115W TDP - Intel VT-x / VT-d / VT-c Virtualization - Ivy Bridge-EP 22nm - OEM/TRAY w/o Heatsink & Fan