AMD Opteron 4122 4-Core Lisbon 2.2GHz 4 x 512KB L2 Cache 6MB L3 Cache Socket C32 50W Processor OS4122WLU4DGNWOF – Retail

Multi-Core: 4-coreOperating Frequency: 2.2GHzSocket: C32L2 Cache: 4 x 512KBWattage: 75WBrandAMDSKUB003TTMBU6ModelOS4122WLU4DGNWOFMPNOS4122WLU4DGNWOFWarrantyManufacturer Limited Warranty period: 3 years Link: http://support.amd.com/us/warranty/Pages/Process