What are the first and second lines of the graphics card?

Jing Xun and Inch can be grouped together, but Gigabyte is not. In the past, Gengsheng and Elsa were also first-line companies, both of which crossed the border successively. Didn't say that Jing Xun was contracted by Yingchi. Jing Xun's factory is called Matsui. Aside from these, I think some contents deserve to be corrected by many people in advance. The foundry is only responsible for OEM according to the requirements of the entrusting party. For example, a good kiln can burn blue and white porcelain, or it may burn chamber pot or even waste products. Just because a factory comes out doesn't mean the same quality. There are so many notebook brands in the world that there are only five foundries. Second, it is also very foolish to simply divide the graphics cards into first-line and second-line by brand. It is the card itself that determines the quality of the card, not the words printed on the outer packaging. Every card in the first line is not perfect, and there is no shortage of the second line. The specific choice should be considered comprehensively.