Intel Xeon X5650 CPU 2.66GHz 12MB 6.4GT/s Hexa 6 Core Server Processor SLBV3 2.66GHz Intel Xeon Six-Core X5650 3200MHz 6.4GT/S 12MB L3 Cache Socket LGA1366 SLBV3 2.66GHz Intel Xeon Six-Core X5650 SLBV3