What is CPU in China? What about performance?

China itself does not have such a high level of strength to make CPUs

The Chinese chip CPU you mentioned is the CPU that the Chinese Academy of Sciences is responsible for the core circuit design and is manufactured by VIA

At present, the highest model is the VIA C7 processor, which is mainly used for low-cost UMPCs, and of course, the performance is much worse than the mainstream Intel and AMD, and the performance of Intel products is about half of the same frequency.

Without a broad market, slow start is the main factor restricting its development.

And China also said that it would build the world's first 16-core CPU, hey, Intel's 80-core CPU has been built...

There are Loongson and Hanxin, and the performance is said to be at the level of P4

Domestic CPUs include Huawei Kunpeng, Feiteng CPU, Haiguang CPU, Loongson, Zhaoxin, and Shenwei.

Among them, Huawei Kunpeng and Feiteng CPUs use ARM architecture, Loongson uses MIPS architecture, Zhaoxin and Haiguang CPUs use X86 architecture, and Shenwei uses Alpha architecture.

Let's start with the Kunpeng and Feiteng CPUs that use the ARM architecture, because they use the ARM architecture, so they can't install Windows, and the reason for the ARM architecture is not suitable for personal PCs, and it is currently mainly used for servers, and to a certain extent, it can only partially replace Intel's server chips.

Let's talk about Loongson, Loongson uses MIPS architecture, and it is impossible to install Windows, and the latest Loongson chip 3A5000 series, its level can only be roughly compared with the i3 series level of Intel's desktop chips 3 years ago.

Therefore, Loongson wants to replace Intel, in the field of personal CPU, it is also a little difficult, mostly used in industrial control, as well as some education, administration, etc., where performance and ecological requirements are not high, but there are high requirements for safety, autonomy and controllability.

Let's talk about Shenwei, Shenwei is mainly used for supercomputers, such as Sunway Taihu Light, which once won the title of the world's first supercomputer, and its performance is currently ranked 4th in the world.

The same Shenwei is also used for servers, but because it is also an alpha architecture, it cannot be installed with Windows, and it is difficult to be used in the field of personal PCs, and can only partially replace Intel's server chips and supercomputing chips.

Finally, let's talk about Haiguang CPU and Zhaoxin, these two CPUs use x86 architecture, the biggest advantage is that Windows can be installed, to meet everyone's requirements for Windows ecology, and it is more suitable for individual consumer PC products.

However, Haiguang CPU is mainly used for servers, and Zhaoxin can be used for personal PCs, but in terms of performance, compared with Intel, it is basically a gap of about 3-5 years, and mainstream desktops and notebooks are still quite few.

China has its own production of CPUs: Loongson.

Loongson was successfully developed on September 29, 2002, the English name of Loongson is godson, and the homophonic nickname in Chinese is "enough to win". by the Institute of Computing Technology, Chinese Academy of Sciences.

Authorized by Beijing Shenzhou Loongson Integrated Circuit Design Co., Ltd., the early batch samples are currently by TSMC in Taiwan.

Production There are currently 2 generations produced: Loongson No. 1 and Loongson No. 2.

1. Loongson No. 1:

Loongson No. 1 CPU IP core.

It is a 32-bit processor core that takes into account the characteristics of both general-purpose and embedded CPUs, adopts MIPS III-like instruction set, and has a seven-stage pipeline, a 32-bit integer unit and a 64-bit floating-point unit. Loongson One CPU IP core is highly flexible and configurable, which is convenient for integrating various standard interfaces. Figure 1 shows the configurable structure of Loongson's CPU IP-core, where the dotted line indicates that users can choose the configuration according to their own needs, so as to customize the most suitable processor structure for the user's application.

2. Loongson No. 2:

Loongson-2 CPU adopts an advanced four-transmitter superscalar super-flow structure, on-chip first-level instructions and data cache.

64KB each, up to 8MB of off-chip L2 cacheThe maximum frequency is 500MHz, and the power consumption is 3-5 watts, which is far lower than that of similar foreign chips, and the measured performance of its Spec CPU2000 test program is VIA.

2-3 times the processor, has reached the level of medium pentium4.

Chips are not enough technology for the time being, and they have to be imported from abroad.

China has ** processors, and there is more than one, at least 30 models, you can search for this, such as Hisense, Haier, Changhong, all of which produce CPUs;

At present, the first countries in the world with CPU are the United States, Japan, Russia, China, and other countries may have but are not famous;

China has its own CPU, Loongson for computers, and Huawei HiSilicon for mobile phones.

Basic introduction: Loongson is a general-purpose CPU independently developed by the Institute of Computing of the Chinese Academy of Sciences, which uses a simple instruction set, similar to the MIPS instruction set. Loongson 1 has a frequency of 266MHz and was first used in 2002. Loongson 2 has a frequency of up to 1GHz.

Loongson 3A is the first domestic commercial 4-core processor, which operates at 900MHz 1GHz. The peak computing power of the Loongson 3A reaches 16Gflops. Loongson 3B is the first domestic commercial 8-core processor, with a main frequency of 1GHz, support vector operation acceleration, and a peak computing capacity of 128Gflops, with a high performance-per-watt ratio.

Founded in October 2004, HiSilicon Semiconductor is a fast-growing chip and optical device company. Headquartered in Shenzhen, HiSilicon has design offices in Beijing, Shanghai, Silicon Valley, and Sweden. By the end of 2011, HiSilicon had more than 3,000 employees, of which more than 67% had doctoral or master's degrees.

Yes, isn't Loongson China's CPU? In addition, now ZTE mobile phones are also using domestic CPUs

HiSilicon Kirin.

Allwinner Nufront.

Rockchip Micro 1, CPU introduction.

The function of the CPU is mainly to interpret computer instructions and process data in computer software.

II. Basic Information.

1.Chinese name: mobile CPU.

2.Foreign name: Mobile CPU.

3.The earliest laptops directly used the desktop CPU, but with the increase of the CPU frequency, the narrow space of the laptop can not quickly dissipate the heat generated by the CPU, and the battery of the laptop cannot afford the huge power consumption of the desktop CPU, so the mobile CPU specially designed for notebooks began to appear, It tends to be manufactured more advanced than its desktop CPUs because mobile CPUs incorporate power management technologies that are not available in desktop CPUs, and with higher micron accuracy first. The main manufacturers are Intel, AMD, Quanmeida and so on.

There are many kinds of CPUs, including mobile, desktop, server, and supercomputing. The mobile terminal is Huawei HiSilicon Kirin, the desktop domestic has Zhaoxin, and the server and supercomputing are Loongson, Shenwei, and Feiteng. In fact, Intel and AMD are not the only ones on the desktop, but also VIA in Taiwan.

**The CPU is one of the main equipment of the computer and the core accessories in the computer. Its function is mainly to interpret computer instructions and process data in computer software.

The CPU is responsible for reading the instructions, decoding the instructions, and executing the core components of the instructions.

At present, the only computer CPUs sold in the Chinese market are Intel and AMD, two American brands, and there are no domestic computer CPUs for sale. In terms of mobile phone CPUs, there are Kirin series CPUs independently developed by Huawei. Xiaomi has also independently developed a CPU for mobile phones, Taiwan's MediaTek mobile phone CPU.

On the computer side, there is Loongson, and on the mobile phone side, there is Huawei HiSilicon.

The military ones are Shenwei and Feiteng.

The main reason why China's CPUs can't get up is not technology, but the entire hardware ecosystem.

For PC CPUs:

There are currently only 2 mainstream CPU brands in the world, AMD and Intel.

At present, there is only Loongson in China, which is based on MIPS, which is different from AMD and Intel architecture, and can only be installed with Linux system;

For mobile phone CPU:

There are currently the following brands:

Huawei's Kirin series CPUs;

Taiwan's MTK's MTK series CPUs;

Spreadtrum's CPU, but the performance is average, and it is generally used in low-end machines;

Lianxin's CPU, Xiaomi Mi 4A has adopted, the performance is poor, and it is better than the cost performance;

Rising Microelectronics' CPU is currently mainly used in tablet computers.

At present, there are 5 CPU manufacturers in the world, namely: Intel, AMD, VIA, Loongson, and Quanmeida;

Among them, Intel, AMD, and Quanmeida are in the United States, and Loongson and VIA are in China; But in fact, the computers we buy on the market are basically Intel or AMD CPUs.

Loongson Taiwan has a VIA, called via, these two are the same.

Loongson was developed by the Chinese Academy of Sciences, right?

Taiwan, China) Loongson (China).

Computer CPUs, which have not been manufactured in China so far.

The technology content is extremely high, and it is impossible to copy.

There are 2 major brands in the main ones.

intel：

processors manufactured by Intel Corporation;

Intel Corporation is the world's largest manufacturer of personal computer parts and CPUs;

Founded in 1968, it has a 46-year history of product innovation and market leadership;

In 1971, Intel introduced the world's first microprocessor. The computer and Internet revolution brought about by the microprocessor has changed the whole world.

AMD: processors manufactured by Chaowei Semiconductor Company;

AMD specializes in the design and manufacture of innovative microprocessors (CPUs, GPUs, APUs, motherboard chipsets, TV card chips, etc.), flash memory and low-power processor solutions for the computer, communications and consumer electronics industries;

AMD is committed to providing standards-based, customer-centric solutions for technology users—from enterprises and organizations to individual consumers;

AMD is currently the only semiconductor company in the industry that can provide three major components: high-performance CPU, high-performance discrete graphics GPU chips, and motherboard chipsets.

CPU, (Central Processing Unit) is also known as ** processor. It is a very large-scale integrated circuit, which is the core and control unit of a computer. Its function is mainly to interpret computer instructions as well as process data in computer software.

**The processor mainly consists of combinators (ALUs, arithmetic logic units) and caches, as well as buses that enable the data, control and state between them. Together with internal memory and input and output (IO) devices, it is known as the three core components of electronic computers.

Extended Information: Logic Components; Operational logic components. You can perform fixed-point or floating-point arithmetic operations, shift operations, and logic operations, as well as address operations and transformations.

Registers: Register components, including registers, dedicated registers, and control registers. General-purpose registers can be divided into two types: fixed-point and floating-point, which are used to store the number of register operations temporarily stored during instruction execution and the results of intermediate (or final) clever shots.

The general-purpose register is one of the important components of the processor.

Control unit: English control unit; The control component is mainly responsible for decoding the instructions and sending out the control signals for each operation to be performed to complete each instruction.

There are two types of structures:

One is the microprogram control mode with micromemory as the core;

One is the control mode based on the logical hard wiring structure.

Microcode is maintained in micromemory, and each microcode corresponds to one of the most basic microoperations, also known as microinstructions; Each instruction is composed of different sequences of microcode, and this sequence of microcodes constitutes a microprogram.

**After the processor decodes the instruction, it sends out a certain timing control signal, and executes a number of micro-operations determined by these microcodes according to the sequence of a given sequence of micro-cycles to complete the execution of an instruction. Simple instructions are composed of (3 5) microoperations, while complex instructions are composed of dozens or even hundreds of microoperations.