The Intel Core 2 Duo E8400 3.00GHz processor is a desktop CPU with a clock speed of 3.0 GHz and a L2 cache of 3 MB. It features two cores, a bus speed of 1066 MHz, and a socket type of LGA 775/Socket T. This processor is part of the Core 2 Duo family by Intel, providing reliable and efficient performance for various computing tasks. With its strong processing capabilities, the Intel Core 2 Duo E8400 is a popular choice for those seeking a powerful and dependable CPU for their desktop computer.