Xeon E5-1660 3.3GHz 6-Core S2011 130W CPU (Tray)
3.3GHz 6 Core - 12 Threads - 3.9GHz Turbo - Socket LGA 2011 / R - 1-Way SMP - Supports DDR3-1600 Memory - 6 x 256KB L2 Cache - 15MB L3 Cache - 130W TDP - Intel VT-x / VT-d / VT-c Virtualization - Sandy Bridge-EP 32nm - OEM/TRAY w/o Heatsink & Fan
Xeon X5675 3.06GHz 6-Core/12-Threads 15MB LGA1366
3.06GHz 6 Core - 12 Threads - 3.46GHz Turbo - Socket LGA 1366 / B - 2-Way SMP - Supports DDR3-1333 Memory - 6 x 256KB L2 Cache - 12MB L3 Cache - 95W TDP - Intel VT-x / VT-d / VT-c Virtualization - Westmere-EP 32nm - OEM/TRAY w/o Heatsink & Fan
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