1, the public version refers to the original design (or authorized design) of the PCB version of NVIDIA or ATI at the beginning of the new product release, and specifies the graphics card produced by OEM. The biggest role of public graphics cards is not only to quickly distribute goods and occupy the market, but more importantly, to strictly control the quality of graphics cards, maintain market prices and establish a brand image. The common characteristics of public graphics cards are luxury materials, high cost and high price. The graphics card shown in figure 980.

2. Non-public graphics card. Except for the public version, all the PCBs designed by other manufacturers are non-public. Compared with public graphics cards, non-public graphics cards have greatly changed in PCB design and materials. Some non-public graphics cards are the product of cost compromise, while others strengthen the shortcomings of public graphics cards, such as heat dissipation, product characteristics, interface design and so on. Non-public graphics cards usually have their own unique functions. As shown in the figure, the non-public 980 graphics card.