Intel Core 2 Duo E4400 2GHz 800MHz 2MB S775 Dual Core CPU Intel Core 2 Duo Desktop Processor E4400 2 GHz800 MHz 2 MB Dual-Core CPU General Features: Intel Core 2 Duo Desktop Processor E4400 2 GHz CPU speed 800MHz Front Side Bus (FSB) 2 MB L2 Cache Dual Core LGA 775 package type Enhanced Halt State (C1E) Enhanced Intel Speedstep Technology Execute Disable Bit Intel EM64T Intel Thermal Monitor Intel Virtualization Technology Brand New