Intel Xeon E5-2603 v2 Quad-Core Processor 1.8GHz 6.4GT/s 10MB LGA 2011 CPU BX80635E52603V2 Intel Xeon E5-2603 v2 Quad-Core Processor 1.8GHz 6.4GT/s 10MB LGA 2011 CPU, Retail Model: Intel Xeon Processor E5-2603 v2 Core Count: 4 Clock Speed: 1.8 GHz Cache: 10 MB Socket: LGA 2011 Max Turbo Frequency: 1.8 GHz