How do you know if a graphics card is good or bad?

Performance:Mainly to see what kind of chip it is,Now the common ones are A card and N card,Both have-for-tat products at similar prices,Generally speaking,ATIs** are better,NVIDA's fast,But some people say it's stupid and fast,Each has its own strengths and weaknesses, and it generally depends on whether you are NFAN or AFAN Game N card performs well on OpenGL,A card performs well on D3D。

Bit width, capacity, frequency of video memory: bit width and frequency correspond to the speed of the graphics card, the higher the frequency, the better, the larger the bit width, the better, 128 or 256

Rendering pipeline: The more rendering, the faster, but the cost is high, once you decide which grade of graphics card to buy, the number of pipelines is generally certain.

The size of the video memory is not very important, and the performance improvement brought by large video memory is not very obvious after the frequency and bit width.

Workmanship: Look at the thickness of the PCB board, the thicker the better, the better the electrical performance. Looking at the quantity and quality of capacitors, the more capacitors the better, and the quality is generally solid-state capacitors, which are not easy to burst.

If you look at the heat dissipation, it is best to have a heat sink on the video memory. Under the condition of ensuring heat dissipation, it is necessary to choose a silent or small fan, which has low power and can also prevent large fans from occupying the PCI slot.

Monsters and heels.

1. Memory bit width: The memory bit width is the number of bits of data that can be transmitted in a clock cycle, and the larger the number of bits, the larger the amount of data transmitted in a short period of time, so video memory is one of the important parameters of the graphics card. There are 64 bits, 128 bits, 256 bits, and 512 bits of memory width.

It is not difficult to understand that the higher the memory width, the stronger the strength of the graphics card.

2. Frequency: Frequency is the speed at which data can be processed, and it is the speed at which data can be exchanged with the GPU, in ns or MHz (conversion formula: 1ns=1000 1MHz, 2ns=1000 2MHz, and so on), the faster the frequency of the video memory, the greater the number of channels, the larger the amount of data that can be processed at the same time, and the better the performance of the whole graphics card.

3. Memory bandwidth: Memory bandwidth has a significant impact on the performance of the graphics card. It is one of the indicators to measure the data transfer rate between the display chip and the video memory, generally speaking, the larger the bandwidth, the faster the data transmission speed, measured in byte seconds.

At the same frequency, the higher the bandwidth of the graphics card, the stronger the performance.

4. Stream processor unit: Now, the number of stream processors has become a very important indicator to determine the performance of the graphics card, NVIDIA and AMD-ATI are also constantly increasing the number of stream processors of the graphics card to make the performance of the graphics card grow by leaps and bounds, all data have a commonality, the larger the number, the better the proof of things.

5. Judging according to the model of the graphics card: After you know the model of the graphics card, you can directly view your graphics card ranking through the results that have been evaluated. You can read the relevant content by searching for the graphics card ladder diagram in it.

6. Heat dissipation of the graphics card: The heat dissipation of the graphics card is a very important indicator of the graphics card, if the heat dissipation is not good, no matter how good the configuration is, it will not help, so the heat dissipation determines whether other performance indicators of a graphics card are available to a certain extent. The main parameters of the cooling fan of the graphics card are all-solid-state capacitors, copper tubes, fan size, etc.