1. Connects the processor with the main memory, managing transfer of data and instructions between the two components. The PentiumŪ 4 processor supports Intel\'s highest performance desktop system bus by delivering 3.2 GB of data per second into and out of the processor - three times the bandwidth of previous processors. This is accomplished through a physical signaling scheme of quad pumping the data transfers over a 100-MHz clocked system bus and a buffering scheme allowing for sustained 533-MHz data transfers.