friends who know something about the notebook must know that most of the notebooks currently on the market have been replaced with i-series processors. One common sense is that the current Core i series has three processors: i3, i5 and i7. The naming rules are like BMW's family car. The 7 series is the strongest, the 5 series is the second and the 3 series is the entry level. But many friends will ask: Which processor is the most suitable for me? Because most people use the Intel core, so let's use it for example: To answer this question, we must first briefly introduce the CPU of the notebook. The processor is also known as the CPU, and its full name is the Central Processing Unit, translated as: central processing unit. It is like a brain for a notebook, which determines the overall reaction processing and mobility. For the processor, there are several terms that we need to understand: 1. Frequency: Everyone often asks: "How much is the frequency of this CPU ……” In fact, this general frequency is It refers to the main frequency of the CPU, the main frequency is also the clock frequency of the CPU, the full name of the English: CPU Clock Speed, simply speaking, the operating frequency of the CPU operation. In general, the higher the main frequency, the more instructions are completed in one clock cycle, of course, the faster the CPU speed. Of course, this is only the general situation. Now with the support of Turbo Boost, many high-end CPUs with low frequency are amazing. For example, Core i7 720QM. We will give you a detailed introduction later. 2. FSB: The full name of FSB is Front Side Bus. The Chinese name is Front Side Bus. It indicates the frequency of data exchange between external devices such as processor and memory. The higher the FSB, the higher the rate of data exchange with external devices. Therefore, the performance of the processor will be slightly higher. 3, cache: English is Cache, divided into L1 L2 L3Cache and other three-level cache, which are integrated inside the CPU, the CPU will pre-store the commands and data that need to be called into the cache, and the result will be processed by the CPU after high-speed processing. Temporarily stored in the cache, and then written to the memory, thereby reducing the time spent by the CPU waiting for data, improving the efficiency of the CPU. In contrast, the increase in cache can improve the performance of the processor, but it also brings about power consumption and other issues. After introducing the basic common sense about the processor, let's break some common CPU misunderstandings: 1. The main frequency is good. This view used to be the fact that in the early days of the development of notebook computers, it can be said that the frequency of the main frequency almost determines the quality of the processor. Intel and AMD two manufacturers, you are chasing after the update of your own processor, the processor we are in contact with is getting faster and faster. However, with the emergence of technical bottlenecks, the frequency of the main frequency can no longer determine the quality of the CPU alone. If you find that a notebook uses a Core i7 720QM clocked at only 1.6GHz, but the price and configuration are higher than another computer using the Core i5 430M clocked at 2.26GHz, please don't be surprised, this is normal. . Because in addition to the main frequency, the front side bus frequency, the number of cache levels, the size of the cache, the number of instruction sets, etc. are all factors that determine the performance of the processor. In addition, power consumption is also an important reference for the processor. The lower the power consumption, the more power is saved, and the same battery can drive the notebook for a longer period of time. So Intel's low-voltage platform is very popular. 2, multi-core is good, 3 core is better than dual-core. One thing we need to pay attention to is, do you need so many cores? If you buy a notebook with a high budget, you can buy the top model as much as you can. However, many people do not usually need to keep their notebooks at their working limit. The mainstream dual-core version is completely sufficient. 3, Intel processor is better than AMD, AMD is cheap, cheap and no good. The example of Intel's chip is because most people's computers are Intel cores, and it does not mean that AMD is not up to grade. The products of the two companies have their own strengths and cannot be killed by a simple stick.