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What are the types of server cpu? Many novices are not very clear about this. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can gain something.

Server cpu has: 1, CISC CPU, mainly intel server CPU and AMD server CPU. 2. RISC CPU, which mainly includes PowerPC processor, SPARC processor, PA-RISC processor, MIPS processor and Alpha processor. 3. VLIW processor.

The server CPU, as its name implies, is the CPU (Center Process Unit central processing unit) used on the server.

As we all know, the server is an important device in the network, which is visited by as few as dozens of people, up to tens of thousands of people, so the server has strict requirements such as fast throughput of a large amount of data, super stability, long-time operation and so on. So CPU is the "brain" of the computer and the primary index to measure the performance of the server.

The CPU of the server is still divided according to the instruction system of CPU, which is usually divided into two types: CISC type CPU and RISC type CPU. Later, there is a 64-bit VLIW (Very Long Instruction Word very long instruction set architecture) instruction system CPU.

What are the types of server cpu?

1. CISC CPU

CISC is the abbreviation of "Complex Instruction Set Computing" in English, which means "complex instruction set" in Chinese. It refers to the x86 (a naming convention of intel CPU) series CPU produced by Intel and its compatibility with CPU (CPU produced by other manufacturers such as AMD,VIA). It is based on PC (personal computer) architecture. This kind of CPU is generally a 32-bit structure, so we also call it IA-32 CPU. (IA: Intel Architecture,Intel architecture). CISC CPU can be divided into two types: intel server CPU and AMD server CPU.

Intel's server CPU

AMD's server CPU

2. RISC CPU

RISC is the abbreviation of "Reduced Instruction Set Computing" in English, which means "reduced instruction set" in Chinese.

It is developed on the basis of the CISC (Complex Instruction Set Computer) instruction system. Tests on CISC machines show that the frequency of various instructions is quite different, and the most common instructions are some relatively simple instructions, which account for only 20% of the total instructions, but the frequency that appears in the program accounts for 80%.

The complex instruction system will inevitably increase the complexity of the microprocessor and make the development time of the processor long and the cost high. And complex instructions require complex operations, which will inevitably slow down the speed of the computer.

Based on the above reasons, the RISC type CPU was born in the 1980s. Compared with the CISC type CPU, the RISC type CPU not only simplifies the instruction system, but also adopts a kind of "superscalar and superscalar and superscalar pipeline structure", which greatly increases the parallel processing ability (parallel processing means that a server has multiple CPU processing at the same time.

Parallel processing can greatly improve the data processing ability of the server. Departmental and enterprise servers should support CPU parallel processing technology.

In other words, under the same frequency, the performance of CPU with RISC architecture is much higher than that of CISC architecture, which is determined by the technical characteristics of CPU.

The CPU of this instruction system is widely used in high-end servers, especially the CPU of RISC instruction system is adopted in all high-end servers.

RISC instruction system is more suitable for high-end server operating system UNIX,Linux also belongs to the operating system similar to UNIX. The RISC CPU is incompatible with Intel and AMD's CPU in both software and hardware.

There are mainly the following types of CPU that use RISC instructions in medium-and high-end servers:

PowerPC processor

SPARC processor

PA-RISC processor

MIPS processor

Alpha processor

3. VLIW processor

VLIW is the abbreviation of "Very Long Instruction Word" in English, which means "very long instruction set architecture" in Chinese. VLIW architecture adopts advanced EPIC (clear parallel instruction) design, and we also call this architecture "IA-64 architecture". EPIC processors are mainly IA-64 of Intel (including Anton processor developed by Intel) and x86-64 of AMD.

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