The Intel Core 2 Quad Q9650 processor runs a front-side bus speed of 1,333 MHz with no parity. Designed with a 64-bit instruction set through Intel 64 technology, this 3 GHz processor produces a fast response time, even when running multiple applications. The 12 MB L2 Cache on this quad-core processor consists of two separate caches, each serving two cores, to deliver fast information access without reducing the response time of the processor. The Intel Core 2 Quad Q9650 supports virtualisation technology that increases the security and reliability of the entire machine. This 3 GHz processor includes built-in virus protection to guard against malware on the computer. This quad-core processor can also be optimised to enhance media performance. The Intel core 2 Quad Q9650 is designed to be energy efficient and employs SpeedStep, which reduces the power output of the processor without inhibiting its performance. Stop Gate, Sleep, and Deep Sleep technologies further reduce the CPU's output, putting the processor into an idle state.