The processor has a huge impact on the performance of the device. Having said that, choosing the right speed becomes a matter of prime importance while purchasing a laptop. A key consideration to make when deciding on the processor speed is the amount of time you intend to be plugged in on an average. This is because; the processor has influence on the power consumed. Ultra-low voltage processors help save battery life.
The clock speed is the basic measuring factor for processor speed. This denotes the frequency with which the electrical oscillations impact the processor. These oscillations are in turn utilized by the processor to perform calculations. Almost all laptop processors available nowadays have the speed measured in Gigahertz.
The core and threads are responsible for providing computational bandwidth of a processor. A processor with hyper threading feature can speed up the process by creating simultaneous threads. Clocking speed and methodology also define the processor speed.
Overclocking pushes the processor speed to the highest level. But on the other hand, overclocking can lead to increased power consumption which in turn increases heat emission from the laptop. Also the clocking speed depends upon the thermal cooling system of the laptop where the CPU is to be deployed. Hence the same processing speed of a computer CPU can perform better in a device with a good cooling system.