How to pick a notebook

Mainstream brands: Lenovo (including IBM PC), Dell, HP, Asus, Acer

Features: Price, configuration, quality, workmanship, these factors are more balanced

Second-line brand: Founder, Tsinghua Violet, Shenzhou

Features: Same configuration, low price, but quality and workmanship deviation

High-end brands: Apple, Sony

Characteristic: The industrial design is very excellent, the workmanship is very fine, the quality is also very good, but the disposition deviation

(2) configuration

The configuration that affects speed is: CPU, memory, video card

The impact of visual perception are: screen, visual design

Easy to ignore but very important factors: thermal status, invoices

1:cpu

A lot of computer computing work is done by the CPU, graphics calculation is by the graphics card or integrated on the motherboard of the GPU (Graphic processing unit, image processor) completed.

CPU is a measure of a computer configuration of the important standards.

The CPU mainly has 2 brands such as Intel and AMD. In laptops, the main use of Intel's CPU, part of the low-end of the notebook will be used AMD's CPU.

The high-end (price >6000) using the CPU is as follows:

Intel Core 2 I Series (i7)

Intel Core 2 P series (P8800, P8700, P8400, etc.)

The CPU used in the midrange (4000< selling price <6000) is as follows:

Intel Core 2 I Series (i5, i3)

Intel Core 2 Duo T Series (T6600, T6570, T6500, etc.)

Intel Core 2 I Series is Intel's newest CPU, with more new technology, such as: the integration of the GPU in the CPU, to some extent, improve the computer's image computing power. Or is the i3 series of CPU parts with a dual-core design, through Hyper-Threading technology can support four threads.

Medium and low-end (price <4000):

Intel Pentium Dual core T-series (T4400, T4300, T4200, etc.)

Intel Celeron Series

AMD series

2: Memory

Memory mainly to see capacity, now the market is mainly 2G, 2G is enough to meet our application.

In addition to looking at the capacity, you can also refer to this indicator: DDR. DDR is the metric for estimating memory bandwidth, and the higher the DDR parameter, the greater the amount of data that is transmitted over the memory unit time.

The specific models are: DDR3 1333, DDR3 1066, DDR2 800, DDR2 667. Now the mainstream notebook is selected DDR3 1066 this model of memory.

3: Video card

The computer's image-related operations are done by the GPU (Graphic processing unit, image Processor), and the GPU is integrated on the motherboard, which is what we usually say is integrated. The GPU is on the graphics card, and that's what we usually call the single display.

Integrated graphics operation requires the operating system to dynamically allocate memory to the graphics card storage data, as opposed to the independent graphics, the system brings additional burdens, and consumes some of the memory. and the independent graphics card is equipped with the faster video memory, so the other configuration of the same computer, the performance is better than integrated graphics.

But now the integrated graphics computer is enough to meet our daily application requirements, unless you often play 3D games and watch high-definition movies (1080P, H.264). Now the independent graphics generally have the ability to decode high-definition hardware, some integrated graphics card does not have this ability, these need to use CPU software decoding, then the computer run up more laborious.

A lot of laptops under 3500 yuan use integrated graphics, and the most common 2 integrated graphics are: Intel GMA 4500MHD and ATI Mobility Radeon HD3200. The latter performance is superior to the former.

More than 3500 yuan notebook computers are basically using a stand-alone graphics card.

Take Lenovo and Dell computers for example:

Lenovo or Dell laptops, which sell at 3500 to 4500 yuan, typically use the following models of graphics:

NVIDIA GeForce g105m

NVIDIA GeForce g210m

ATI Mobility Radeon HD4330

ATI Mobility Radeon HD4550

GPU performance from strong to weak for:hd4550> hd4330≈g210m >g105m

Lenovo or Dell laptops, which sell at 4500 to 5500 yuan, typically use the following models of graphics:

NVIDIA GeForce g210m

NVIDIA GeForce GT 240M

NVIDIA GeForce GT 130M

NVIDIA GeForce 9300M GS

ATI Mobility Radeon HD4570

ATI Mobility Radeon HD4530

GPU performance from strong to weak for: GT 240m> gt 130m> hd4570> HD4530 >g210m>9300m GS

I personally think that the 4500-5000-yuan laptop is enough to meet the mainstream application of students. So 5500 yuan above the notebook computer graphics card, I will not describe.

4: Screen

Screen mainly divided into widescreen and normal screen, widescreen for the aspect ratio of 16:10 screen, the normal screen for the aspect ratio of 16:9 screen. Widescreen displays are more effective than normal screens when watching movies in full screen.

The main screen sizes are: 14 inches and 15 inches.

5: Appearance

To tell the truth, although the different configuration of the notebook computer, the calculation speed is different, but the actual speed will be affected by many factors, such as: Operating system optimization of the pros and cons. In addition to speed, the appearance is also affecting the use of our experience an important factor.

6: Heat dissipation

Heat dissipation is very easy to ignore but very important factors, because the notebook integration of high, the degree of heat dissipation directly affect the stability of the computer, because if the CPU is not scattered, resulting in too high temperature, it is easy to cause computer crashes, but also shorten the life of the CPU.

The most effective way to evaluate the heat dissipation of a notebook computer is to let the laptop run several programs at the same time, improve CPU usage, and hear the hum of the CPU fan for a while. If the buzz is particularly large, this notebook is not very good cooling effect.

7: Invoices

Although the notebook computer is not easy to problem, but the warranty service is very necessary. However, many notebook manufacturers are required to provide invoices to provide warranty services.

How do you collect information about your laptop before you buy it?

(1) Configuration class information

Configuration class information can query http://product.pconline.com.cn/notebook/and other information such as websites, of course, these sites also have specific computer prices, these prices can only be used as a reference, if you go to Beijing Zhongguancun market may be able to buy at this price, But in Qingdao the price may be a little higher.

(2) Price category information

Price class information can go to www.360buy.com, www.newegg.com.cn website to check, but the premise is that these sites have the model you want.

At this time some students will be angry, said the internet many parallel imports, these prices are not reliable.

Let me explain why the price information of these websites can be used for reference. Oh