How to Buy Laptop A Guide to Laptop Buying Skills
Compared with laptops and desktops at the same price, laptops can't compete with desktops in terms of performance, heat dissipation, screen experience, upgrade space, etc. The advantages of laptops are also very obvious. The biggest feature is undoubtedly portability, which is more convenient for users to carry around. Some Xiaobai are not familiar with notebooks, so they often have no way to buy notebooks. So how to choose a laptop? The following IT encyclopedia shares the knowledge of notebook computers and the guide to purchasing skills. I hope this article can help you.
Notebook computer knowledge and purchasing skills guide
1、 How to choose a laptop?
1. Clarify purpose and budget
Before purchasing a laptop, you should first define your own purpose, and then select a laptop based on your own budget.
purpose
First of all, you need to clarify your own use. What is the purpose of the purchased notebook? For example, if you are playing games, you undoubtedly need a game book, because the game book has better CPU performance, graphics card performance and heat dissipation performance. Of course, the price will be higher. Generally, it is recommended to start at 5000 yuan. Of course, we usually just surf the Internet, light work, online classes, watch videos, and so on. No doubt, such requirements do not require high computer configuration, so we usually choose light and thin books, usually starting from 2000 to 2000.
budget
In fact, budget is very important. Everyone knows that the more expensive the laptop is, the better the performance. If the budget is insufficient, such as only two or three thousand yuan, it is not realistic to buy a game book with acceptable performance. It is a thing of the past to imagine all kinds of good configurations.
2. Choose notebook with e-commerce platform
After you have made clear your budget and purpose, we can use the e-commerce platform to purchase laptops. We just use the platform to purchase laptops, not let you purchase them directly. For example, JD. After we open JD, we can search for notebooks of different brands, different prices and different configurations by searching for "notebooks". However, notebooks are a large category, and we can further refine the category, such as thin and light notebooks, game books, and thin and light game books. Later, we will introduce these three types of notebooks in detail. What are the differences between them, for example, We want a notebook to play games. When we search for "game book", we can find a variety of game books for game players, as shown in the following figure.
Choose notebook with e-commerce platform
We will further filter our own budget. For example, when we buy a game book, we will bear a budget of 6000-7000 yuan. We will fill in 6000-7000 yuan in the price box respectively, and click OK. At this time, the notebook will recommend you a notebook with a price of 6000-7000 yuan, which is equivalent to narrowing the scope of purchase.
Notebook price
If there are certain requirements for laptops, we can continue to further filter. For example, the mainstream screens of game books are 15.6 inches. Most people buy this size, but some people think they need a larger screen. We can choose 17.3 inches in screen size, and we can choose 17.3 inches in screen size. If there are certain requirements for CPU and video card, In the advanced option, we click hardware such as processor or video card to filter in one step, which is more convenient to select, and is equivalent to eliminating unwanted hardware.
One thing you need to remember is that laptop screens, CPUs, and video cards must be carefully considered. In general, they cannot be upgraded in the later stage. Even if they can be upgraded, the heat dissipation may not be suppressed. Therefore, there are few important hardware upgrades. However, memory and hard disks that can be upgraded in the later stage have reserved space for upgrading in general notebooks.
Notebook shopping
If you have a favorite brand, such as the famous Lenovo, HP, Dell, Asus, aliens and other brands, we can click on the brand to screen again, so you can choose a smaller range, and it is easier for you to buy your favorite notebook.
Notebook brand
The above is just a way to choose a laptop, which is suitable for the majority of novices. The laptop is relatively fixed, its appearance and configuration are relatively rigid, and it cannot be compared with the freedom of DIY computers. Therefore, you must know what to choose. A laptop cannot satisfy you in all aspects. After all, it is difficult to adjust, and almost none of the consumers are satisfied.
2、 Notebook classification
Notebook computers can be divided into thin and light books, game books and all-purpose books (thin and light performance books). The differences between them are as follows.
1. Light and thin edition (including super extreme edition)
Lightweight notebooks pay more attention to portability and appearance. Because this type of notebook is relatively light, it is more convenient to carry. It is suitable for business people who often go out, college students, etc., but it is not suitable for playing games. The main advantage of the thin and light notebook is that it is thin and light, so it has better portability, high color value, and better battery life than the game book. The disadvantage is that the hardware performance has shrunk. For example, CPUs are basically low voltage. Generally, CPU models use the U suffix, or even the Y suffix ultra-low voltage processors. TDP has low power consumption, but its performance is weaker than the standard voltage CPUs. Usually, it is a single fan, a single heat pipe, or even a fanless ultra-low voltage processor, with low noise. Usually, the thin and light notebook does not have an independent video card, but only an integrated video card, or it is only equipped with a relatively rudimentary display, such as MX150 and MX250.
For example, Apple's MACBook, Lenovo's Xiaoxin, Huawei's MateBook, HP's Zhan66, and Dell's Lingyue.
Flimsy edition
2. Gamebook
The game book pursues performance. The computer configuration is relatively good, especially the performance of the independent graphics card. In order to provide a better heat dissipation condition for the notebook, it is relatively thick. The weight is generally more than 3KG, and the thickness is generally more than 25MM. The endurance is poor. When it is less than 3 hours, it is generally equipped with a powerful heat dissipation fan, usually double fans and multiple heat pipes. Therefore, the sound will be a little loud when it is turned on. Generally, game book CPUs are high voltage, usually Intel Core i5 and above. CPUs are usually matched with standard voltage CPUs. Usually, CPU models are suffixed with H, or even desktop processors that can be replaced. The graphics cards are basically equipped with mainstream or high-performance independent graphics cards, and the performance positioning is basically GTX1050 and above.
For example, the rescuer of Lenovo, the shadow spirit of HP, and the flying fortress of ASUS all belong to the game book.
Gamebook
3. All round book (thin and light performance book)
The thin and light performance book is a compromise between thin and light books and game books. Its volume and weight are basically the same as those of thin and light books, while the configuration is the same as that of game books. The weight of the notebook is generally within 3KG, the thickness is generally between 20~25mm, and the endurance is usually about 3-5 hours. However, because the notebook is thin, the heat dissipation is not ideal, so the game experience is far from that of professional game books, So it is more suitable for graphic design, video clips and other people.
For example, Dell's XPS, Z2 of the Mechanical Revolution, Thundersnake's Holy Blade, ROG's Ice Blade, etc.
All round book (thin and light performance book)
3、 Notebook hardware science popularization
1. Notebook CPU
At present, the CPU market is mainly divided into intel and AMD. In the notebook field, intel is the mainstream first choice. In the intel Core series processors, there are several grades: intel Core i3, i5, i7, and i9 series. Among them, i3 is positioned at the middle and low end, i5 is positioned at the middle end, i7 is positioned at the high end, and i9 is positioned at the flagship fever level. Personally, laptops recommend that the CPU should not be lower than the Core i3, and i9> can be ranked according to performance; i7> i5> I3, but this is not absolute. It depends on the processor generation and the suffix letter of the CPU model.
Intel Common CPU Model Suffix (Notebook):
There are many suffix letters for the common CPU models of Intel CPUs, such as M, MQ, HQ, H, Y, and U. The M suffix represents the mobile version, Q represents the true quad core, H represents the BGA package (non removable), Y represents the ultra-low voltage processor, and U represents the low voltage. However, since the beginning of the eighth generation of Core and the new generation of CPU, there are only U and H suffixes. U represents the low voltage processor, while H represents the high voltage processor. For example, it is also the same generation of i5. Compared with the suffix H, the model suffix U is much smaller in performance.
U: Low voltage processor, with weak performance but low power consumption, generally used for thin and light books;
H: Standard pressure processor, with strong performance, generally used for game books;
AMD Common CPU Model Suffix (Notebook):
The suffix letters of AMD CPU models are similar to those of intel. They are also H standard pressure version and U stands for low-voltage version. The positioning of AMD Reynold series is also somewhat similar to that of Core. The common ones are Reynold R3, R5 and R7 series, which respectively benchmark Intel's Core i3, i5 and i7 series, and can be sorted as R7> according to performance; R5> R3。
2. Notebook graphics card
At present, video cards are divided into core display and independent video card. The current core display is the former integrated video card, but the core display is integrated inside the CPU. The former integrated video card is integrated on the motherboard. Of course, the core video card can also be called "integrated video card".
Independent graphics cards are mainly NVIDIA (Invista) and AMD, also known as N card and A card. NVDIA is recommended to be the first choice in the notebook field. Both power consumption, heat generation and optimization are better than AMD independent display. I suggest not to consider AMD independent display. As the core display is built in the CPU, the core display is basically the Intel core display (built in the Intel processor) and AMD core display (built in the AMD processor), so the core display can meet the needs of basic images, whether it is the Intel core display or the AMD core display, and for large games, the high-definition images must be on an independent video card.
Nowadays, most models of notebook NVIDIA graphics cards are similar to desktop computers, and the performance of the 9th generation and later generation of N cards is similar to that of desktop computers. Unlike the early mobile version, which has M and MAX-Q suffixes (mobile version), there is a certain performance gap with the same model of desktop computers. NVDIA graphics cards are generally prefixed with GT or GTX models. GT is targeted at entry-level graphics cards, while GTX is a high-performance version, GTX represents a high-performance version, and RTX represents a higher performance version with ray tracing technology. Currently, NVIDIA is divided into 16 series and 20 series, respectively. The 20 series is targeted at a higher end than the 16 series. For example, GTX1650 graphics cards, 16 is 16 series, and the third number represents performance. The larger the number, the higher the performance, For example, GTX1650 and GTX1660Ti undoubtedly have better performance. Ti represents the enhanced version, while RTX2060 is the 20 series. Although the third figure and GTX1660Ti are both 6, the performance of GTX1660Ti is definitely higher than that of GTX1660Ti, and it supports ray tracing technology. For the performance of the video card, you can refer to the ladder diagram of the video card to determine whether it is good or bad.
3. Notebook Laptop screen
At present, there are many screen sizes, including 13.3 inch, 14 inch, 15.6 inch and 17.3 inch. The mainstream screen size of thin and light books is basically 13.3 inch and 14 inch, while that of game books is 15.6 inch. Laptop screens are mainly divided into two categories, IPS screen and TN screen. IPS screen is more vivid and real in color restoration performance, which means that white dots are good in color and have advantages such as large visual angle. TN screen has poor color restoration performance, but its response time is small. At present, IPS screen is more recommended by mainstream.
Gamut
The focus on screen color is mainly on the color gamut. The color gamut represents the color range that can be displayed on the screen. For the most common color gamut of notebook screens, 45% NTSC, 72% NTSC and 100% sRGB are used. The color gamut of low-end products is generally 45% NTSC, while the high color gamut is 72% NTSC or 100% sRGB. The coverage area of 100% sRGB is approximately 72% NTSC, which is about the same.
resolving power
At present, the mainstream screen resolution is 1920 * 1080, while the low-end notebook screen resolution is 1366 * 768, and the higher resolution is 2K (2560 * 1440 resolution, also marked 2.5K), 4K (3840 * 2160 resolution). The higher the resolution, the more pixels the display can display, and the finer the picture. Unless there are special requirements for screen resolution, it is not recommended to choose 2K or 4K screen, because the higher the resolution, The higher the hardware requirements are. Generally, 1920 * 1080 is sufficient for laptop screens. The main screen proportion is 16:10, 16:9, and 3:2, which is more suitable for productive work. The screen is more square.
High refresh rate
Generally speaking, the normal screen refresh rate is basically 60hz, while the high refresh rate generally refers to the refresh rate of 120Hz and above, such as 120Hz and 144Hz. At present, the mainstream high refresh rate is 144Hz. The high refresh rate screen is usually used in the game book, which is suitable for FPS video games, and has no effect on daily use. Under the same configuration, the high refresh rate screen is undoubtedly more expensive, providing a better smooth silky feeling for players in FPS games, There will be fewer virtual shadows of characters, reducing the fast corner drag of characters, and making the picture more coherent.
4. Notebook memory
Nowadays, the mainstream memory is basically 8G DDR4 memory, and the memory frequency is 2400 and 2666MHz. If the memory capacity of a laptop is 8GB, you can buy an upgrade if you want to upgrade it. Remember that the brand must buy Kingston, Wigan, Micron, and Zhiqi. If the low-quality memory is lower than the market price, most of them use poor memory particles, which is hard to say about stability, compatibility, and after-sales, It's troublesome if problems occur frequently.
5. Notebook hard disk
Nowadays, most laptops and desktops are the first to use SSDs. At the same price, SSDs are fast, but their capacity is generally small. Generally, a single solid state mainstream starts at 256GB. On the contrary, although the capacity of machinery is large, and generally starts at 1TB, its speed is slow. The hard disk can be basically divided into three types: single solid state, single mechanical, solid state+mechanical dual hard disk. The hard disk must be the first choice, preferably M 2 NVMe protocol, faster read and write speed. For the moment, I don't need a single mechanical hard disk. No matter how good the other hardware is, it has been delayed by the mechanical hard disk. Therefore, the current mechanical hard disk is best used as a storage secondary disk. Of course, the hard disk can be upgraded in the future.
4、 Notebook shell material
The shell of a notebook determines the appearance and quality of a notebook. Generally, the shell is made of alloy, ABS, polycarbonate, carbon fiber, etc. The alloy materials can be divided into aluminum magnesium alloy and titanium alloy, ranking titanium alloy> Aluminum magnesium alloy> Carbon fiber material> Polycarbonate&