Intel BX80551PG2800FN Pentium D 820 2.8 GHz 800MHz 2x1M LGA775 Processor

Intel Pentium D Processor 820 - This desktop processor features two cores, which is like having 2 processors for the price of 1! Each executes independently, and at the same 2.8 GHz speed. So you get true multi-tasking and super-fast performance from dual-core supported applications. Another interesting feature is the Execute Disable Bit. It's a level of security for your computer, that's built right into the CPU! It protects you from certain malicious "buffer overflow" attacks. Attacks that can screw up your PC and damage your data. Execute Disable Bit - protects you from certain malicious buffer overflow attacks Intel Extended Memory 64 Technology - accesses larger amounts of memory and will support 64-bit extended operating systems