Intel Pentium 4 3.06GHz 533MHz 1MB Socket 775 CPU Intel Pentium 4 3.06 GHz 533 MHz 1 MB Socket 775 CPU General Features: Intel Pentium 4 processor 3.06 GHz clock speed 533 MHz bus speed 1 MB L2 Cache LGA 775 package type Hyper-Threading technology Intel EM64AT supports 64-bit computing S-Spec: SL87L