Look at the positioning first, Core Series i7? i5？ I3-high school and low school, and then Pentium Celeron (not recommended).
Second, look at suffixes. Common ones are U and M, where M is standard pressure and has high performance. U is a low voltage (commonly used type of notebook), with low power consumption and little heat generation. It is recommended that students who have no performance requirements choose low voltage. (H stands for BGA package and cannot be replaced. Compared with M, it improves frequency and TDP, not overvoltage. )
Third, look at algebra. I5 7200U is the seventh generation. It is recommended to buy newer ones, with a higher cost performance for generations 5 and above (joining AMD to enhance competitiveness).
At present, the most common low voltage is i5. Most online games (LOL) and ordinary stand-alone machines (COD 10) are enough, and 3k-4k is a safe choice.
Standard pressure i7 is suitable for large-scale games and some professional applications. If you can't buy the standard voltage i7, you can choose the standard voltage i5, which is much better than the low voltage i5.
If the budget is less than 3k, it is i3, small games, audio-visual entertainment, chat office. Similarly, if the performance is dominant, it is rated, otherwise it is low pressure.
If you are not clear, please search cpu ladder diagram.
2. Discrete graphics cards _ _ There are two brands of non-essential components, AMD and NVIDIA. Xiao Bai suggested N card, so we won't discuss A card here for the time being.
First, ignore memory.
The second position is positioning, the bigger the better, for example, GTX780M is 8, high-end, GT7 10M is 1, slag.
The first number is algebra. The bigger the better. Don't buy anything too old, such as GT540M m.
If you want to play large-scale games, it is recommended that you choose a graphics card with the sum of the first two digits not less than 12 (NVIDIA only), such as GTX850M.
820M, 7 10M, a "unique display", is just a gimmick and not worth buying. Unfortunately, there are many such cards in the low-end machine around 3k, so there is no way. Talk is better than nothing.
If you are not clear, please search the ladder diagram.
(Memory type, some graphics cards have GDDR3 and GDDR5 models, and D5 has better performance than D3. )
3. Core graphics card _ _ The most commonly used graphics card
The performance of graphics card integrated in CPU has now reached the level of low-end display alone, which can meet most needs except playing games.
The model is HDXXXX, such as HD4400 integrated in i5-4200U.
For office work, surfing the internet, watching movies, playing the Three Kingdoms Kill, etc. It is recommended to choose a computer without a unique display screen, because these scenes all use nuclear display.
Some small games, such as DNF, Hearthstone Legend and Nuclear Display, are also enough.
But now most 3000 and 4000 computers like to have a low-end card such as 820M with 2G memory. It seems that the pure nuclear display is not easy to find, but it is more common and embarrassing on high-end ultrabooks.
4. Memory _ _ has the least impact on performance.
Just look at the capacity. What dual channels, brands and timing have little influence.
Now that 4G has started, it is enough for daily use, and it will exceed 8G if you play large games or have enough budget. However, for users with clear disassembly, it is recommended to buy a low-memory version and add it yourself to save money.
You can pay attention to the memory chips on the motherboard. If only one 4G is inserted into two slots, it means that one can be inserted and upgraded to 8G in the future.
Some ultrabooks are soldered to the motherboard and on-board memory, which needs attention.
5, hard disk _ _ the bottleneck of today's computer configuration
Mechanical hard disk has large capacity and poor speed. The common capacity is 500G, 1T, 2T, and the rotating speed is 7200, 5400rpm (slag facing solid), with high cost performance, slow operation, loud sound and caution.
Solid-state hard disk has small capacity and high speed. Common capacities are 32,64,128,256g and 60,120,240.
Solid state drive. okay SSD greatly improves the system fluency and overall experience, but has little effect on the frame rate of most games.
But there is no need to entangle the solid state. A 32G low-end machine is also a pit, and it is not enough to make a system disk.
In life, 100G solid state +500G mechanical configuration can be adopted to improve the cost performance and experience. The memory space of the reference history notebook is low, and it can also be 256G pure solid state.
Add a 128G when you know it clearly. Domestic production is not recommended.
When adding solid state, you need to pay attention to whether the notebook has idle M.2 interface, mSATA interface or optical drive, otherwise you can only change the original machine.
The mainstream capacity of machinery is 500G and 1T, so don't buy a smaller one (240,320).
6, the screen _ _ the most important output
Resolution: 768P p is the most, and high-resolution screens often refer to 1080P, 2K, 4K, with clearer details, delicate screen and good display effect. I am nearsighted, and I can't feel the difference when I experience more than 1080P (excluding 1080P).
Surface: frosted screen and mirror screen, the former is anti-reflective and the latter is clear and bright.
7, IO interface and other _ _ easily overlooked experiences
USB:3.0 has become quite common. Now you can buy a 2.0 notebook, but you must have a 3.0 notebook. Pay attention to the number, 3 to 4 are common, and choose according to the number of commonly used USB devices. If four are not enough, buy a docking station;
HDMI, VGA, DP: video output, used to connect the monitor and projector;
RJ45: Network cable socket, some ultrabooks need to be transferred through USB in order to be light and thin.
All-in-one card reader: a card slot that comes with the body can read SD cards (mostly used for cameras) and TF cards (mostly used for mobile phones); Non-professional photography is not commonly used, just understand it.
CD-ROM drive: It is rarely used now, and it is unnecessary. If you need to watch CDs occasionally, you can use USB external drives. In addition, the notebook with optical drive can remove the optical drive and add a second hard disk.
8. Other things you may regret in the future.
Endurance: If you move frequently, such as students gathering in the library or on business trips, it is recommended to choose a low-voltage CPU ultrabook with good endurance.
Net weight and travel weight: net weight-the weight of the notebook, plus the charger is the travel weight, which is really tired after a long time.
Noise and heat dissipation: Generally, high-performance notebooks have poor heat dissipation and noise control, while ultrabooks are quiet. The specific mode depends on word of mouth. Some game fans are like fighter planes. Some metal handles or keyboards are very hot. Some air outlets are on the right (blowing the mouse).
Size: The big screen is cool, but portability and space occupation also need to be considered. Personal recommendation 14 inch is relatively balanced, 13 inch is suitable for thin and light books, 15 inch highlights audio-visual games, and 17 inch is a foldable computer.
Touch screen: poor practicality, chicken ribs, lower efficiency than keyboard and mouse, will only increase the purchase cost and thickness and weight. Pervert is another word.
Variant book: unless there are special needs, such as frequent travel by train, complicated environment, business trip, compulsion, etc., it is not necessary.
Screen opening angle: A few notebooks can reach 180 (tiling), so the touch screen is useful, such as making a chessboard.
Touchpad: The materials are different, some are smooth and some are rough, and the buttons are integrated (mbp) and split. It's best to go to the physical store to feel the feel.
Backlit keyboard: high and convenient at night. Who knows who uses it. Single white can meet ordinary needs.
Keypad: Some keyboards don't have a keypad, so you can quickly input numbers with one hand and play multiplayer fighting games with gay friends.
Camera: just look bright, not as a selection condition. Because of the fixed angle, limited pixels and insufficient budget, you can consider installing a camera.
Speaker: Dolby pro logic has many people, so buy a peripheral for several hundred dollars.
Appearance: As an appearance party, I think whether it is a mobile phone or a computer, the ugly vote is rejected.
After-sales: how long is the warranty, whether it is guaranteed, whether it is sent for repair or on-site service, replacement conditions, and whether there is broken pipe maintenance (such as Dell CC).
9, a few buying tips strongly do not recommend physical stores to buy, Bainaohui, Zhongguancun is famous for deceiving people, which can be understood by Baidu's "notebook transformation".
It is not recommended to entrust an acquaintance to buy. If the money is not bad, you can try it. Whether some acquaintances are familiar with you or money, it is a good opportunity and no loss.
Ways to obtain information: refer to the introduction pages of Zhongguancun Online, Tmall and JD.COM, the pictures in the comments of Taobao, Tmall and JD.COM, and consult the customer service of Tmall and JD.COM, and the quality stickers and evaluation stickers of notebook bars and video cards. Direct Baidu is not recommended, because there are too many people who don't understand blind BB.
You can go to Suning Appliance for trial operation. Suning's booth is very good. All brands have them. You can play with your mobile phone and computer at will. You can directly feel the weight, appearance and touch screen of the notebook. Some staff who don't understand will help you explain. They won't always promote products, but they still don't recommend buying them in Suning, because they may let you buy anti-virus software and other products. A friend mentioned in the evaluation that Shundian is also suitable for trial operation, but the answer is that the owner does not understand, so I put it here for your reference.
Online shopping is recommended, and it is recommended to choose a reputable platform, such as JD.COM and Tmall flagship store.
10, balance demand and budget, and figure out what you need.
This 740m graphics card, it is better to add 300 yuan to buy that 750m-just playing LOL, there is no need.
How can this be low pressure u? Low-voltage U-card won't work-you play the Revolution and I surf the Internet.
Look at this ship, the configuration at the same price is much higher than yours-configuration is only one of the factors to consider when buying a notebook, as long as it is enough, please tilt the budget to other aspects.
820M what rubbish, the graphics card must start GTX；; I5+ nuclear display also sells for 7000 yuan, whoever buys it * *-playing games is only a small part of the function of the notebook, and it is also a tool for surfing the Internet, communication, office and production.
You can't buy a superbook-your classmates who play games say yes, but their sister just watched a Korean drama online and you bought a silly one? People learn to watch PPT and large open online courses. You let people use aliens?
Playing games with a laptop is better than using a desktop-combined with your own environment, such as college students with limited power supply and no space in some dorms.
Why not buy a high-end computer if you have money? Consider the impact of excess performance on power consumption, battery life, heat dissipation and noise.
4G memory is not enough-different people use it differently. I can only say that if the memory reaches 4G, it will not drag down the whole machine. If it is not enough, you can add another one or change it later. If the 4G card is returned, please consider upgrading to SSD first.
Buy the top match in one step-it won't take a lifetime to match it again, just change it to a new one in three years. I can't change it for five years. What a nuisance.
Configure the law of conservation and spend money where it is most needed.
Most of this comment is taken from Xiao Bai, published by StefanYU users in Lenovo community 20 15 1 1 Would you really choose a notebook? For details, please see the original post of Lenovo Community: Xiaobai, do you really choose a notebook?