Explain the performance effect of bus width to computer system

We everybody look system speed in terms of Processor, memory, RAM, etc. But have we ever thought a System bus is equally important.

Explanation:

Let us justify now. The bus is the important resource which actually takes the data. How fast the bus is, that much fast it carries the data.

Front Side bus actually communicates data between "RAM and the Processor. Most vital work load is handled by the fastest bus.

The speed of the RAM is controlled by System Bus only.