Some parameters that are recommended to pay attention to when buying a computer to help you choose the right computer

time:2023-01-27 07:05:21 author:Power Supply
Some parameters that are recommended to pay attention to when buying a computer to help you choose the right computer

1. CPU (Central Processing Unit) 1. The CPU is the operation and control core of the computer system. When we buy a computer, the CPU is the first choice. The computer runs fast or slow, and the CPU with the parameters (number of cores, main frequency) is selected accordingly. 2. What brands of CPUs are there? Intel, AMD, Apple M1, Loongson loongson, Feiteng PHYTIUM, Shenwei processors, etc. The mainstream ones include Intel Core and AMD Ryzen 3. How does Intel Core look at its performance? For example: the CPU is Core i5-11200Ui which represents Intel, the same generation and the same type of processor, the performance level i9>i7>i511 represents the algebra. The higher the performance, the U represents a processor with low voltage and lower performance than H, with low power consumption and less heat, and is often used in thin and light notebooks; if it is H, it represents a high-performance processor. 4. How does AMD Ryzen look at its performance? The naming rules of Ryzen are similar to those of Intel. The only difference is that Ryzen is R5. How to choose a CPU? For those who have requirements for performance, choose i7/R7 or above, and the end for H. For those who don't have performance requirements, choose i5/R5, either U or H at the end. Architecture CPU architecture generally refers to the design of the CPU, which is an important symbol used by manufacturers to distinguish new and old CPUs of different types. Generally speaking, processors with new architectures are stronger than those with older architectures. For AMDRYZEN Ryzen series processors using Zen architecture: Zen3>Zen2>Zen+>Zen. In terms of Intel processors, the current Core i5 and above processors use the RocketLake architecture, while the entry-level low-end processors such as the i3 Pentium and Celeron use the CometLake architecture. Therefore, RocketLake (11th generation) > CometLake (10th generation) > Skylake (6th generation) 02 main frequency Turbo frequency overclocking CPU main frequency mainly refers to the clock frequency of the CPU, that is, the daily normal operation frequency of the CPU. Ghz said, refers to the number of pulses generated in 1s, the larger the CPU frequency value, the stronger the single-core performance of the processor (the main consideration of the game is the single-core performance). Turbo frequency means that the processor will automatically increase the performance by about 10%-20% when running a program to ensure that the program runs more smoothly and faster, and the single-core performance of games usually mainly refers to the turbo frequency. Overclocking is overloading, which can also further improve the performance of the processor. However, overclocking needs to adjust various indicators such as voltage, power supply, and heat dissipation. The operation requirements are higher, and the risk is also relatively large. A little carelessness can easily cause damage to the system. Affect the life of the machine, therefore, it is not recommended to overclock the processor for a long time. For desktop CPUs, AMD Ryzen processors can be overclocked, with an X suffix indicating automatic overclocking, and without manual overclocking; Intel Core processors are mainly mid-to-high-end models with K/X suffixes to support overclocking . 03 Process Technology The process technology mainly refers to the fineness of the integrated circuit when manufacturing the CPU. At present, the common ones are 7nm, 12nm, 14nm, etc. Usually, the smaller the value, the more advanced the process technology, the stronger the performance, and the higher the power consumption and heat generation. Low. 04 The number of cores/threads mainly refers to the situation that Intel and AMD use hyper-threading technology to modify the processor core design on a small scale when the performance of the main frequency of the processor reaches a bottleneck, and the processor core design can be greatly improved without adding additional costs. performance. The higher the number of threads and cores, the better the processor's ability to handle multitasking such as video editing, special effects rendering, design drawing, and 3D modeling. - Productivity performance is also better. In real life, both desktops and laptops have excess performance for many people. Therefore, for most people, six-core or eight-core is enough to meet the needs of daily office or gaming, and there is no need to blindly choose a processor with a higher specification for non-special professional work. 05 Level 3 cache Now the CPU's operation speed is very fast, so the response speed of the memory and hard disk cannot keep up, so the cache is needed as an intermediate buffer medium. Put some data in the cache, so that the CPU can quickly call these data without frequent reading from the memory and hard disk, which can greatly improve the data processing capability of the CPU. The cache is currently mainly divided into three levels. The first and second levels have small capacity but high cost. The capacity gap between processors is not too large, and the product details page is generally not clearly marked, so the three-level cache is now common. In short, under the same architecture and manufacturing process, the larger the L3 cache capacity, the better the processor performance. 06TDP power TDP power mainly means "W (Watt)", which can reflect the strength of processor performance from the side. In theory, the stronger the performance, the greater the heat and power. But this is not absolute, because the processor needs to exert powerful performance, and the heat dissipation design must be good enough, otherwise it is easy to reduce the frequency. 07 The interface and the motherboard CPU need to be installed on the motherboard through the interface to be used normally. At present, the two mainstream processors of Intel and AMD are pin-type interfaces, but they are not the same. The 12th generation Core is mainly based on the LGA1700 interface. series motherboard, such as Z690 B660 H610 and the like. The tenth generation + generation Intel processors are mainly based on the LGA-1200 interface. Different series of processors are equipped with different 400 and 500 series motherboards, which are relatively more complicated. The picture below is the recommended motherboard configuration for different models of Intel processors, you can compare them. For AMD Ryzen processors, there are many choices, mainly based on the AM4 interface, and the main board with B550A520, X570B450. 08 Boxed and loose boxed CPUs and loose tablets have their own advantages, and it depends on personal choice. The advantage of the boxed CPU is that it has a long shelf life, usually a warranty of 3 years; the rate of genuine products is high, and it is not easy to buy second-hand goods; most products have their own cooling fans, and users do not need to buy a radiator separately; the disadvantage is that it is usually more expensive than a loose piece. Expensive about 500 yuan, the heat dissipation performance is not good enough for the radiator purchased separately. The advantage of the loose piece is that the price is cheap. Even if you add the money to buy a better radiator separately, the overall price is more cost-effective than the boxed one, and the cost-effective;
Second, graphics card 1. The graphics card is an important component that connects the monitor and the computer motherboard, and its function is to convert the driver. Usually our monitor is black, and whether there is a problem with the graphics card is often one of the factors we consider. 2. Graphics card is divided into integrated graphics card, discrete graphics card and core graphics card. Integrated graphics card: it can be understood as the processor's own, low power consumption, stable performance, and inexpensive discrete graphics card: as the name suggests, it exists alone, with fast performance and speed. It is also convenient for the core graphics card: the graphics core is integrated in the processor, the graphics processing efficiency is stronger, low power consumption, high performance It's called a gaming graphics card. Common NVIDIA mobile independent graphics prefixes are generally GT or GTX, and GT is an entry-level graphics card. Compared with GTX, the performance is not so powerful. 9 means that the graphics card algebra is the ninth generation. 6 represents the high and low end of the same series of graphics cards, the higher the value, the better the graphics cards have the same algebra. 0 is a small model of the graphics card. When all the values ​​in front of the value are the same, the bigger the better. 4. How to choose a graphics card For daily office work, audio-visual entertainment, and those with a small budget, it is recommended to choose an integrated graphics card or GT entry-level graphics card. Large-scale 3D games, professional graphics (3D software and the like), GTX game graphics cards or professional graphics cards are recommended. 3. Memory 1. Memory is also called internal memory and main memory. It is used to temporarily store operation data in the CPU and data exchanged with external memory such as hard disks. It is the bridge between external memory and CPU to communicate. 2, the memory determines the speed of the computer running programs. 3. Memory type 4G: entry-level, running multiple software at the same time, meeting card 8G: mid-range, meeting general needs 16G: current mainstream, simultaneous multi-tasking to meet professional design 32G: currently high-end, the demand is not very large 4. How to choose The recommended memory is 16G and above, which is smooth to use and will not get stuck. Fourth, the hard disk 1, the computer's storage device. This is how much software or files you have depending on the size of your hard drive. 2. Hard disks are divided into mechanical hard disks (HDD) and solid-state disks (SSD). Mechanical hard disks improve computer storage space. The greater the number of revolutions, the better the performance. Solid state drives are faster than any mechanical hard drive, the computer runs smoothly, and the larger the capacity, the more things you can store. 3. How to choose a hard disk There must be a solid-state hard disk. If the storage capacity is not much, it is 512G. If the storage capacity is large, choose 1TB or more. The last three 5. Screen resolution 1. The larger the value, the higher the clarity. 2. How to choose, according to personal needs. 6. Screen size The screen size refers to the length of the diagonal of the laptop. Now there are 13.3 inches, 14 inches, 15.6 inches, 16 inches, etc. If it is in inches, you can convert it into centimeters to know the approximate size of the laptop. 7. Battery 1. Select the battery capacity, which can be determined by considering the length of the battery life. The longer the battery capacity, the larger the battery capacity. 2. For thin and light notebooks and all-around notebooks, under the same weight and price, choose the larger battery, and the game notebook does not need to be concerned. It must be plugged in to use it.

(Responsible editor:Graphics card)

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