What is the function of front side bus?

Answer 1

The front side bus formerly connected the Northbridge Controller to the CPU (a way of communication) it still has the same communication, but it is not called FSB, it is called a HyperTransport Bus.

Answer 2

FSB (Front Side Bus) is also known as the Memory BUS or System BUS and connects the CPU with the main memory and is used to connect to other components within the computer. The FSB can range from speeds of 66MHz, 100MHz, 133MHz, 266 MHz, 400MHz, 533MHz and beyond.

System bus: The bus that connects the CPU to main memory on the motherboard. I/O buses, which connect the CPU with the systems other components, branch off of the system bus.

Backside bus: A microprocessor bus that connects the CPU to a Level 2 cache. Typically, a backside bus runs at a faster clock speed than the frontside bus that connects the CPU to main memory. For example, the Pentium Pro microprocessor actually consists of two chips -- one contains the CPU and the primary cache, and the second contains the secondary cache. A backside bus connects the two chips at the same clock rate as the CPU itself (at least 200 MHz). In contrast, the frontside bus runs at only a fraction of the CPU clock speed.

Answer 3

the frontside bus is work with the CPU to control the agp while the external data bus is about the speed information is processed