To economize on component cost, often the same crystal used to produce color television compatible signals was also divided down and used for the processor clock.
The graphics, sound, and PCI bus ran at the same speed as the processor clock also due to tight integration.
The money saved can go toward things such as a faster video card, which generally shows a much bigger benefit than another 200MHz of processor clock.
The processor clocks had interrupt handlers which implemented watchdog timers on all processors.
The processor clock and memory cycle time were slower than the 1904S, allowing the use of cheaper parts.
With the new 100 MHz front side bus, Pentium II CPUs were able to scale better in performance by reducing the difference between processor clock and bus speed.
Just don't go switching carriers based on that processor clock.
The drum's rotational speed was synchronised to the main central processor clock, which allowed for additional drums to be added.
Intel SpeedStep technology transitions may also impact the processor clock.
As the pipeline is made "deeper" (with a greater number of dependent steps), a given step can be implemented with simpler circuitry, which may let the processor clock run faster.