CPU performance indicators include: 1. Frequency; 2. CPU cache capacity and performance; 3. CPU operating voltage; 4. CPU bus mode; 5. CPU manufacturing; 6. Superscalar.
#The operating environment of this article: Windows 7 system, Dell G3 computer.
CPU performance indicators are:
1. Frequency
The frequency of the CPU refers to its working frequency, which is divided into main frequency, FSB and multiplier.
1. The main frequency is actually the clock frequency of the CPU core when it is working. The main frequency of the CPU represents the oscillation speed of the digital pulse signal in the CPU. Therefore, it cannot be directly explained that the speed of the main frequency is a direct reflection of the running speed of the computer CPU. We cannot completely use the main frequency to summarize the performance of the CPU.
2. The FSB is the operating frequency of the system bus, which is the base frequency of the CPU. It is the speed at which the CPU and the motherboard run synchronously. The higher the FSB speed, the more data the CPU can accept from peripheral devices at the same time, further increasing the speed of the entire system.
3. Frequency multiplication refers to the multiple of the difference between the CPU FSB and the main frequency.
2. CPU cache capacity and performance
The larger the calculated cache capacity, the better its performance. When the computer is performing data processing and calculations, it will first store the read data aside, and then accumulate it to a certain amount and then transfer it simultaneously. This way, the difference in processing speed between different devices can be resolved. This is the cache capacity. When processing data, it is a temporary storage point for data. It stands to reason that as long as the cache capacity is larger, the data processing speed of the computer will be greater, and the computer will run faster.
3. CPU Working Voltage
The normal working voltage range of the CPU is relatively wide. In the early days of computer development, the approved voltage of the CPU at this time was about 5 volts. Later, with the development of CPU technology and technology, the voltage required for the normal operation of the CPU became lower and lower than before, reaching as low as 1.1V. The CPU can also operate normally in such a low-voltage environment. Some enthusiasts achieve the purpose of overclocking by increasing the working voltage and enhancing the operating efficiency of the CPU, which greatly improves the operating efficiency of the CPU. However, this is an undesirable method that consumes the service life of the CPU.
4. CPU bus mode
Generally speaking, we divide the bus structure inside the CUP into three categories: single-line structure, with one bus connecting all internal components, simple structure and low performance. Dual bus structure, there are two buses connecting each component, which is called dual bus structure. Multi-bus structure, if there are 3 or more buses connecting various components in the CPU, it forms a multi-bus structure.
5. CPU Manufacturing
The manufacturing process of CPU was first 0.5um. With the improvement of manufacturing level, most people later used 0.25um. Today, with the rapid development of science and technology, the manufacturing process of CPU has begun to be measured in nanometers.
6. Superscalar
Superscalar means that the CPU can execute more than one instruction in one clock cycle. This is hard to imagine on 486 or previous CPUs. Only Pentium-level CPUs and above have this superscalar structure; CPUs below 486 are low-scalar structures, that is, executing an instruction in this type of CPU requires at least one or more clock cycles above.
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核心数指的是CPU内核数量,表示一个CPU由多少个核心组成;cpu核心是CPU的重要组成部件,在内核频率、缓存大小等条件相同的情况下,CPU核心数量越多,CPU的整体性能越强。线程数是一种逻辑的概念,简单地说,就是模拟出的CPU核心数。CPU之所以要增加线程数,是源于多任务处理的需要;线程数越多,越有利于同时运行多个程序,因为线程数等同于在某个瞬间CPU能同时并行处理的任务数。

区别:1、单核就是CPU集成了一个运算核心,多核就是CPU集成了两个或多个运算核心;2、单核能同时运行的线程数较多核更少,不利于同时运行多个程序,而多核有利于同时运行多个程序;3、单核的执行速度较多核更慢,容易造成卡顿;4、多核的多任务处理效率比单核高;5、多核的性能比单核高,散热量、耗电量也比单核大;6、单核多用于部分要求轻薄、待机时间长、而对性能要求不高的笔记本电脑上。

cpu温度高的原因:1、散热不良;2、机器内灰尘过多也会引起死机故障;3、内存条故障;4、CPU超频;5、 硬盘故障;6、软硬件不兼容;7、驱动程序安装有误;8、应用软件的缺陷;9、病毒感染;10、启动的程序太多;11、用非法格式或参数非法打开或释放有关程序;12、误删除了系统文件;13、CMOS设置不当。

12核16线程指的是CPU中有12个内核,CPU的线程是16个,最多可以模拟16个核心;CPU的核心是运算器和控制器,多核可以增强并行处理能力,线程是进程中某个单一顺序的控制流,在单个程序中同时运行多个线程完成不同的工作,称为多线程。

cpu长期100度是会烧的;cpu的温度达到100度,短时间不会烧坏,只是会影响到CPU的运算效率,但是长时间保持100度就会出现烧坏硬件的情况;发热量由CPU的功率决定,而功率又和电压成正比,因此要控制好温度就要控制好CPU的核心电压。

能直接存取。内存储器又称内存,是外存与CPU进行沟通的桥梁,计算机中所有程序的运行都是在内存中进行。内存的作用是用于暂时存放CPU中的运算数据,以及与硬盘等外部存储器交换的数据。只要计算机运行,操作系统就会把需要运算的数据从内存调到CPU中进行运算;当运算完成后,CPU再将结果传送出来,内存的运行也决定了计算机的稳定运行。

cpu温度过高导致的影响:1、CPU有自我保护功能,CPU过高会自动开启保护系统,降低电脑运行速率,系统越来越慢,直至死机,反复重启;2、长时间高温(长时间85度以上),CPU的自我保护功能可能失效,会烧坏CPU;3、自动关机,且关机之后,温度未降低之前无法开机。

cpu封装温度指的是表面CPU温度,就是说从表面CPU层的温度,一般还有内核温度,相差的度数不大;中央处理器温度是指CPU外壳温度,核心温度就是CPU内核的温度;一般核心温度和封装温度是接近的,cpu表面温度比后面者低不少。

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