Why is the CPU of Android phones generally 8 cores?

For now, Android phones.

CPUs are generally designed with octa-cores.

The reason why different manufacturers and different models of mobile phone CPUs use the octa-core design is because of the following reasons:

1. Software requirements for hardware performance.

2. Ability of hardware design.

3. The ability of chip production.

In fact, mobile phone CPUs are not born with octa-core. ......Today's mobile phone CPU has been upgraded little by little from the initial state after continuous technological development.

In the early days, mobile phones used analog signals.

Its CPU design is also very simple.

Later, there was digital technology.

With the blessing of mobile phones, the beginning of mobile phones has entered the fast lane. Until smartphones appeared.

In the early days of mobile phones, its functions were limited to making ** and sending messages.

Later, mobile phones became more and more functional, and eventually developed smartphones, which became indispensable tools in people's daily lives.

At this time, the performance requirements of mobile phone software for hardware are getting higher and higher, so the development speed of mobile phone CPU is faster.

Due to the technical limitations of the design and production of VLSI circuits used in CPUs, it is impossible to improve performance indefinitely, so multi-core CPUs began to appear ......Gradually developed, there is today's octa-core CPU ......

In fact, the CPU can certainly be made into more than an octa-core ......Six cores and even more cores are completely doable ......However, under the current technical conditions, the octa-core is the most cost-effective choice, so all manufacturers have taken the octa-core CPU as the current focus for R&D and production......

Now the CPU processor of Android phones is basically octa-core. But in fact, a large part of it is what you call pseudo-octacore. To put it simply, the true octa-core refers to a ** processor, there are 8 small processors, and these eight small processors can work and process data at the same time.

The pseudo-octa-core refers to a ** processor equipped with two sets of 4-core CPUs with different performance.

The system automatically allocates which set of 4-core CPU to use according to the usage, for example, when you look at a web page and send a message or something, it uses low-performance 4-core work, and when you run a large software game, it is replaced by another 4 cores, which means that in any case there are only 4 cores in operation, the purpose of this is actually mainly to save power, but the actual performance is still 4 cores.

And the performance of the octa-core is not necessarily better than that of the quad-core. Even if it's good, it's not exponentially growing with the number of cores. When multiple cores work together to process data, the more cores there are, the more performance penalty there is due to the interaction between multiple cores.

Therefore, even if the main frequency is the same, the performance of the true octa-core will not be twice that of the quad-core.

As for the pseudo-octa-core, it can't be said to be a lie, but manufacturers generally only say eight-core mobile phones when they advertise, which sounds very bluffing, but it's not really a real eight-core. So when you buy, you should see exactly what the parameters are.

The quad-core and octa-core parameters of the mobile phone describe the number of processing cores of the mobile phone CPU, and the CPU quad-core refers to the back-based.

A single semiconductor has four processor cores with the same function on one processor, in other words, four physical processor cores are integrated into a single core. The octa-core CPU is that the number of cores is doubled compared with the quad-core, and the principle is the same.

The quad COPY core and 8-core in the mobile phone parameters describe the processing core of the mobile phone CPU.

The most important thing about a high-performance smartphone is definitely its "core", that is, the CPU, just like the computer CPU, it is the control center of the entire mobile phone, and it is also the control center of the logic part. The microprocessor achieves control by running software in memory and calling up the database in memory.

Therefore, it is enough to choose the right processor for you according to your needs. Of course, the processing power of a mobile phone is not only related to the CPU, but also related to memory, storage, read speed, etc.

CPU refers to the mobile phone processor and is very important.

RAM refers to the running memory, what the general CPU wants to run, first transfer the things to be run.

Rows of memory capacity, running. So the CPU, to be considered at the same time as RAM.

ROM refers to physical memory, which is how much a phone can store.

This is the parameter of the phone's hardware, the larger the parameter, the better the hardware used.

can make the phone run fast or slow.

Hello, the number of CPU cores of the mobile phone GHz refers to the main frequency of the mobile phone's CPU. The main frequency of the mobile phone CPU refers to the frequency of its internal clock signal, measured in hertz (Hz), and 1 hertz is equal to the frequency of 1 second. The higher the main frequency, the faster the CPU will run and the stronger the ability to perform tasks.

Therefore, the main frequency means that the mobile phone's CPU runs faster, which can support higher intensity computing and smoother running applications. After all, the current mainstream Android or iOS mobile phones, the CPU frequency is mostly in the middle, at the middle and upper level, which can carefully meet most daily use scenarios. However, the performance of a CPU cannot be fully judged based on the main frequency alone, because different CPU architectures and processes will have different performance at the same main frequency.

In addition to the main frequency, several other key indicators of the mobile phone CPU include:1CPU Type:

Qualcomm Snapdragon, Huawei Kirin, Samsung Exynos, etc. The performance of different brands and models varies greatly. 2.

CPU architecture: ARM Cortex-A53, A57, A75, etc., different architectures have differences in computing efficiency and power consumption. 3.

Number of CPU cores: At present, the number of CPU cores in mainstream mobile phones is between 4-8, and the more cores there are, the larger the number of tasks that can be performed at the same time, and the smoother the operation. 4.

Process technology: generally in nanometers (nm), such as 10nm or 7nm process. The more advanced the process, the smaller the chip area, the higher the performance and the lower the power consumption.