Product Description About this item Intel Xeon E5-2609 v2 Quad-Core Processor 2.5GHz 6.4GT/s 10MB LGA 2011 CPU, Retail Model: Intel Xeon Processor E5-2609 v2 Core Count: 4 Clock Speed: 2.5 GHz Cache: 10 MB Max Turbo Frequency: 2.5 GHz Socket: LGA 2011 https://www.electronics70off.co.uk/products/Intel-Xeon-E5%252d2609-v2-Quad%252dCore-Processor-2.5GHz-6.4GT%7B47%7Ds-10MB-LGA-2011-CPU-BX80635E52609V2.html