How many instructions per second

Again, this benchmark is incapable of providing the information of how the processor works and whether it is suited for a particular application or not. Million instructions per second is however useful in comparing the performance of processors based on similar architecture. It can give a clear picture of task performance speed rather than just instruction execution speed. Again, there is no standardized method available for providing the measurement. As a result of the given reasons, million instructions per second measures are not used much.

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Wiki tools Wiki tools Special pages. Page tools Page tools. Userpage tools. A CPU with two cores, called a dual core processor, is like having two processors in one. A dual core processor can fetch and execute two instructions in the same time it takes a single core processor to fetch and execute just one instruction.

A quad core processor has four cores and can carry out even more instructions in the same period of time. The main downside of using quad core processors is that they are more expensive to design and make, and they also use more power than single or dual core processors.

Another disadvantage is that the instructions have to be split up to decide which core will execute them and the results have to be merged together again at the end, which slows the processor down a little. The most commonly used instructions and data are stored in the cache so that they are close at hand. The bigger the cache is, the more quickly the commonly used instructions and data can be brought into the processor and used.