Intel Xeon E5-2643 Intel Xeon E5-2643 Quad-core (4 Core) 3.30 Ghz Processor - Socket Lga-2011oem Pack - 1 Mb - 10 Mb Cache - 8 Gt/s Qpi - Yes - 32 Nm - 130 W - 163.4&deg;f (73&deg;c) - 1.4 V Dc - Rohs Compliance