The Intel Xeon E5450 quad-core processor (part number 458583-B21) is a 45nm, 64-bit CPU running at 3.0GHz with 12MB L2 cache and 1333MHz front-side bus. Socket LGA771 design ensures compatibility with HP ProLiant DL380 G5 and ML370 G5 servers. With 80W TDP, this processor delivers strong performance for virtualization, database workloads, and general enterprise computing at reduced power consumption compared to earlier Xeon generations. The quad-core architecture supports multi-threaded applications common in mid-range data center environments. Refurbished units have been tested and guaranteed to meet specifications; available via quote from G5 Network Group.