— the simplest version of multi-core processor. However, the dual-core design itself is pretty good compromise between power and speed on the one hand, and price and power consumption on the other. At the same time, among such processors there are both low-cost solutions and powerful high-performance chips; therefore, 2 cores by themselves are not the main indicator when choosing laptop according to the characteristics of the processor, you need to look at the rest of the parameters. As a result, this option is by far the most widespread, it can be found in both low-cost and top models of laptops.
