How to distinguish the advantages and disadvantages of CPUs, and how to distinguish CPUs?

It's the main frequency, just like the irrigation of the farmer's rice field, which means that the 4-inch pump represents the 12-inch pump. Got it.

CPU Performance Metrics:

CPU is the core of the entire microcomputer system, it is often synonymous with various grades of microcomputer, the performance of CPU roughly reflects the performance of microcomputer, so its performance index is very important.

CPU is the core of the entire microcomputer system, it is often synonymous with various grades of microcomputer, the performance of CPU roughly reflects the performance of microcomputer, so its performance index is very important. The main performance indicators of the CPU are:

1) The main frequency is the CPU clock speed. Generally speaking, the higher the frequency, the faster the CPU. Due to the different internal structures, not all CPUs with the same clock frequency perform the same.

2) Memory-bus speed refers to the communication speed between the CPU and L2 cache and memory.

3) Expansion-bus speed refers to the working speed of the local bus installed on the microcomputer system, such as VESA or PCI bus interface card.

4) Supply voltage refers to the voltage required for the CPU to work properly. In the early days, the working voltage of the CPU was generally 5V, and with the increase of the CPU frequency, the CPU working voltage had a gradual downward trend to solve the problem of excessive heating.

5) The address bus width determines the physical address space that the CPU can access, for microcomputer systems above 486, the width of the address line is 32 bits, and the maximum physical space that can be directly accessed is 4096 MB.

6) The width of the data bus determines the amount of information transmitted at one time between the CPU and the L2 cache, memory, and input and output devices.

7) Built-in coprocessor contains a CPU with built-in coprocessor, which can speed up certain types of numerical calculations, and some software systems that need to perform complex calculations, such as higher versions of Auto CAD, need coprocessor support.

8) A superscalar is when the CPU can execute more than one instruction in a clock cycle. CPUs above Pentium level have a superscalar structure; CPUs below 486 belong to a low-scalar structure, that is, it takes at least one or more clock cycles to execute an instruction in this type of CPU.

9) L1 cache is the L1 cache. The built-in cache can improve the efficiency of the CPU, which is why the 486DLC is faster than the 386DX-40. The capacity and structure of the built-in L1 cache has a significant impact on CPU performance, which is why some companies strive to increase the capacity of L1 cache memory.

However, the cache memory is composed of static RAM, and the structure is complex, and the capacity of the L1 cache cannot be too large when the CPU die area is not too large.

10) The cache with a write-back structure is valid for both read and write operations, and the speed is fast. Caches with a write-through structure are only valid for read operations.

Agree with the statement on the second floor, simple and clear.

CPU generally looks at the main frequency and L2 cache, which depends on the statement on the first floor.

Do your own research.

The simplest is to compare the most mainstream Intel on the market.

Let's start with the numbers: the first one represents the generation of the CPU, and the larger the CPU, the better the architecture. The second digit of i7-4770k > i7-3770k represents the processor class, the higher the number, the better the performance.

The third bit of i7-4810mq > i7-4710mq represents the core display, which is negligible compared to the fourth digit and the power consumption is negligible.

Let's talk about the suffixes: h, m, u, which means power consumption, the smaller the letter, the greater the power consumption, and the better the performance. So the suffix:

h>m>u。For example: i5-5350h> i7-4610m, i5-4330m> i7-4558uh:

i7 is rare, i5 is more m: notebook dedicated, dual-core, the number in front of m represents the voltage level. It's more complicated, I think I don't need to compare it too much

Notebook dedicated low-voltage, dual-core, performance worse than M, the number in front of it represents power consumption. It's more complicated, and I think I don't need to compare it too much.

QM (MQ): dedicated to notebooks, Q stands for Quad, that is, quad-core CPU. The number in front of it represents the power consumption, the smaller the number, the greater the power consumption, and the better the performance For example, 3630qm>3635qmhq:

The difference between HQ and MQ is that the packaging method is different, MQ is detachable, while HQ is not detachable. HQ performance is slightly better than MQ. For example:

i7-4710HQ> i7-4710MQXM (MX): Flagship CPUs.

In addition, the performance with mq, hq, xm is usually much better than with h, m, u!

There are also CPUs that are followed by only one letter X, K, S, T. x stands for Top Extreme Edition (6 cores and 12 threads) while k, s, and t stand for power consumption, and the smaller the letter, the greater the power consumption and better the performance. In addition, K also indicates that it can be overclocked, and the performance is greatly improved, such as:

i7-4770k>i7-4790s

The best tool to use is CPU-Z, which can view the detailed hardware information of the CPU, such as model, frequency, number of cores, etc., and can also test the performance of the CPU.

In general, first look at his core framework, the core number of the latest framework can be understood as, the latest book. Its core is, however, look at the higher the frequency of his main skin, such as Intel. Want to see his worthy of his first generation, desktop computer? He is generally average, himself, quad-core processor.

Let's look at the core architecture and number of cores first. The latest architecture can be understood as the most advanced, the more cores, the better the performance, and of course, the more expensive.

One is the brand, and now there are two main brands: Intel and AMD under the same brand, but also look at the model.

Each type of CPU has differences in pins, main frequency, operating voltage, interface type, packaging, etc., especially in speed performance. Only if you buy a CPU of the same type as the CPU supported by the motherboard, the two can work together.

This aspect is a little more complicated, and the most direct way is to directly search for the CPU and there will be a lot of answers, for example, I found the following answers, but only part of it is to know the CPU, including the identification of the number.