Intel Xeon Eight-Core E5-2687W 3.1GHz 8.0GT/s 20MB LGA2011 Processor without Fan, Retail BX80621E52687W Core Count: 8 Clock Speed: 3.1 GHz Max Turbo Frequency: 3.8 GHz Cache: 20 MB Intel QPI Speed: 8 GT/s Socket: LGA2011