How to buy a laptop? No matter whether living or working, It is essential to have a laptop. If you do not know how to buy a laptop, it will start from these aspects. I will give you a detailed explanation of how to buy a right laptop. 

1. Determine budget and demand

The premise of all purchases of notebooks is to choose around the budget. For the limited budget, it is more cost-effective to consider laptops. It is recommended to choose from the following four grades. After knowing the budget, you should make in-depth choices according to your own needs, Be clear about the main purpose of buying your laptop in the future, so you won’t avoid having to over-provision or fail to meet your needs. 

1 Less than $450,Low-end configuration preferred for office users
2 $450-$750 mid-end business users
3 $750 or more, high configuration experience for game players

2. Look at the configuration Need a clear basic configuration before buying a laptop 

1). CPU processor:
The two main CPU manufacturers are Intel and AMD. Let's know more about Intel processors first.
a) Intel processor
CPU series: The most common Core series i9, i7, i5, i3, the performance is i9> i7> i5> i3 (only for the same generation of the same type of processor comparison).
CPU Algebra: Represents the first generation of CPUs. Generally speaking, the higher the number, the better the performance. For example, i5-9300H is the ninth generation, and i5-7200U is the seventh generation.
CPU type: divided into low voltage and standard voltage, marked in the suffix of the CPU model. Y, U stands for low pressure, H, M, Q, X stands for standard pressure, standard pressure CPU: strong performance, large power consumption, large heat, short battery life. Low-voltage CPU: low power consumption, low heat production, slightly poor performance and long battery life. 

b) AMD processor
Ryzen series: It is divided into low voltage and standard voltage versions like Intel's Core. The latest low voltage versions are R5 3500U and R7 3700U and the standard version is R5 3550H and R7 3750H. Among them the low-voltage Ryzen is equivalent to the low-voltage Core and the standard version is slightly inferior to the Core.

3. Graphics card:
Mainly processing graphics, divided into nuclear display/set display and independent display
1) Nuclear display/set display
The integrated graphics card is soldered to the motherboard and the core display is coexisting with the CPU. The performance ratio is better and the power consumption is lower.
2) Independent display
Independent display with independent video memory, does not occupy system memory, the current mainstream manufacturers are NVIDIA and AMD.

NVIDIA:

The performance of the 20 series from high to low: GeForce RTX 2080Ti/2080/2070/2060
The 16 series performance from high to low: GeForce RTX 1660Ti/1660/1650
The performance of the 10 series from high to low: GeForce RTX 1080Ti/1080/1070Ti/1070/1060/1050

AMD:
Radeon RX Vega Series: Radeon RX Vega 64/56
Radeon RX 500 Series: Radeon RX 590/580/570/560XT/560/550
Radeon RX 400 Series: Radeon RX 480/470/460 

4. About memory ram
It is used to temporarily store the operational data in the CPU.
The current computer memory is basically 4G or more. If you want to make the computer run faster, it is recommended to be 8G or more. However for the case of over-provisioning, it is necessary to select the memory according to your own needs which is not necessary. 

5. Hard disk
It is basically divided into mechanical and solid state with large mechanical space, slow transmission and low price. On the contrary it has small solid space, slow transmission and high price.
There is nothing to say about the hard disk The condition allows the solid state to be a system disk, plus a mechanical storage data, but the current notebook uses solid state to meet the needs of basic users.

6. Screen
Be feel comfortable or not by using the computer, depends on the screen.
Look at the screen configuration and pay attention to the following items:
1) Although it is divided into IPS and TN screens, it is recommended to choose IPS!
2) The current mainstream resolution is above 1080P.
3) Color gamut: The screen can display the range of colors, 100% sRGB ≈ 72% NTSC > 45% NTSC, for the design requirements please try to choose a high color gamut screen.
The above is the detailed answer on how to buy a laptop for novices. If you have enough money, the higher price with better. Only the expensive ones can be bought, so the friends with more tangled funds are still honestly choosing cost-effective ones.