RDRAM is a revolutionary technology. Rather than building on previous memory types, Rambus incorporates significant changes. Rambus RIMM modules operate at a maximum frequency of 400MHz and use clock doubling to allow for 800MHz performance. This high-speed operation is offset by reducing the bus width from 64 bits to 16 bits. Rambus utilizes an impedance matched channel to ensure high performance and stability.Current Rambus systems are based on either the Intel 820 or 840 chipset. The 840 offers enhanced performance by using two channels instead of one. Systems applications include high-end desktop and workstation platforms.