The speed of the bus that connects the processor to main memory (RAM). As processors have become faster and faster, the system bus has become one of the chief bottlenecks in modern PCs. Some examples of bus speeds are 1066 MHz, 800 MHz, and 533 MHz.
The speed that data travels along the wires that connect the processor to all other parts of the computer. Bus speed is measured in megahertz (MHz), or millions of cycles per second. Most computers have bus speeds of 66 to 100 MHz. A faster bus speed can lead to improved performance, but is usually closely tied to the speed of the processor. For example, Celeron processors use a 66 MHz bus, while Pentium II and IIIs use a 100 MHz bus.
This is a measurement, usually in MHz, of how many times data can be transferred over the bus per second.
The speed at which the chips (or chipset) on the motherboard move data around from device to device on the motherboard. See also Bus, Devices and Motherboard.
The speed or frequency at which the data on the motherboard is moving.
This is a speed measured in MegaHertz that determines how fast the memory and CPU run. The only "official" bus speeds supported by Intel are 66 and 100. However, numerous others exist (75, 83, 103, 112, 124, 133, 153, etc.). High-quality memory is required for the higher bus speeds. The bus speeds usually determine the speed of the PCI and AGP buses as well The default PCI bus speed is 33 and the default AGP bus speed is 66 MHz. The CPU speed is determined by a combination of the bus speed and multiplier (i.e. 100 bus speed x 4.5 multiplier = 450 MHz CPU speed).