1. Determine the use. Before buying to determine their own use, to see whether it is used to play games or catch up on the drama, work or study. Different uses require different configurations.
2. The graphics card is good or bad. If the use of high performance requirements, then we must choose as good as possible graphics card. n card to see the suffix, such as GTX980 and GTX1050, where the 9 represents the ninth generation, 10 represents the tenth generation. The larger the numbers 8 and 5 represent the higher-end graphics card. And A card basically look at the numbers, the larger the number the better.
The CPU is also often referred to as the processor, the general work use, only need to choose i5 processor can, if there are higher requirements can choose i7 processor.
The number of memory bars. Sometimes not the bigger the memory is the better, but also depends on the number of strips it has. The general memory sticks are divided into single and dual, for example, two computers are 8G but one is dual and one is single, then the dual will cause a lot of unnecessary trouble when upgrading the memory.
If your computer supports DDR4, you may want to take a look at the small recommended amount of this memory stick
5. The type of hard disk. Nowadays, hard drives are generally divided into solid state drives and mechanical hard drives, solid state drives have faster read and write speeds than mechanical hard drives, but mechanical hard drives are more complex internally, with motors and fans, while solid state drives do not have, this choice according to their own needs.
6. the quality of the power supply. A good power supply is very important for the computer, especially desktop computers, a good power supply can make the life of the computer longer, so be sure to polish your eyes to choose.
7. motherboard compatibility. To consider the motherboard is generally desktop computers, because the motherboard will affect the compatibility of the later upgrade computer. Generally speaking, the newer you choose the better the compatibility of the motherboard.