533838-L21 - HP 2.80GHz 1066MHz FSB 3MB L2 Cache Socket LGA775 Intel Core 2 Duo E7400 2-Core Processor

Based on Intel Core microarchitecture, the Core 2 Duo processor family is designed to provide powerful energy-efficient performance so you can do more at once without slowing down. With Core 2 Duo desktop processor, you'll experience revolutionary performance, unbelievable system responsiveness, and energy-efficiency second to none.