The most critical factor that determines the performance of the graphics card is "video memory". The function of the video memory is to temporarily store the data calculated by the GPU core. Therefore, the video memory plays a vital role in the performance of the graphics card. Other factors that determine graphics card performance: memory type, stream processor, memory width, bandwidth, frequency, etc.
The operating environment of this tutorial: Windows 10 system, Dell G3 computer.
The main factors that determine the performance of the graphics card
There are many factors that determine the performance of the graphics card. Video memory is only an important core factor, but it is not Not all. In addition to video memory, factors that determine graphics card performance also include video memory type, stream processor, video memory width, bandwidth, frequency, etc. If only the video memory capacity is large and other aspects are weak, the performance of the graphics card will not be strong.
What is video memory?
Video memory, also called frame buffer, is used to store rendering data that has been processed or is about to be extracted by the graphics card chip. The size of the video memory determines the actual game performance of the graphics card to a certain extent. Especially for most of the high-definition large-scale games in the past two years, a large number of exquisite game maps have increasingly higher requirements for the graphics card's video memory. For example, the popular game "PlayerUnknown's Battlegrounds" has very high requirements on graphics card memory. The GTX1060 3G will often burst the video memory under high special effects, while the GTX1060 5G or 6G version can smoothly play chicken under high special effects.
Video memory serves the graphics card. Its function is to temporarily store the data calculated by the GPU core. That is to say, data needs to be exchanged frequently between the video memory and the GPU. Therefore, the video memory is crucial to the performance of the graphics card. important role.
Introduction to video memory related knowledge:
1. Video memory capacity
Video memory capacity is the capacity of local video memory on the graphics card. This is the key to choosing a graphics card. One of the parameters. The size of the video memory capacity determines the ability of the video memory to temporarily store data, and it will also affect the performance of the graphics card to a certain extent. When the resolution is larger and the games you need to play have higher special effects, it is appropriate to choose a product with a relatively large video memory capacity at the same time.
2. Video memory bit width
The video memory bit width is the number of bits of data that the display can transmit in one clock cycle. The larger the number of bits, the greater the amount of data that can be transmitted instantly. This is one of the important parameters of video memory.
3. Video memory bandwidth
Video memory bandwidth is the bridge between the display chip and the video memory. The larger the bandwidth, the faster the communication between the display chip and the video memory.
4. Video memory frequency
The video memory frequency refers to the frequency at which the video card works on the graphics card by default, in MHz. The memory frequency reflects the speed of the memory to a certain extent. Video memory frequency varies with the type and performance of video memory.
5. Video memory package
TSOP package: TSOP package is to make pins around the chip and use surface mounting technology to directly attach to the surface of the PCB board. When the TSOP package size is used, the parasitic parameters are reduced, which is suitable for high-frequency applications, is easier to operate, and has higher reliability. It has the advantages of high yield and low price, so it has been widely used.
MBGA package: The pins of MBGA are not exposed, but are parasitic on the bottom of the chip in the form of tiny solder balls, so the pins of this kind of video memory cannot be seen. The advantages of MBGA packaging include less noise, good heat dissipation, good electrical performance, a large number of pins, and improved yield rate. The most prominent feature is that the spacing between internal components is smaller and the signal transmission delay is short, which can greatly increase the frequency.
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