1, public graphics card refers to the graphics card manufactured by standard specification components and standard specification boards provided by graphics chip manufacturers, corresponding to non-public graphics cards. 2. The so-called "public graphics card" refers to a set of "reference design schemes" provided by chip manufacturers for subsequent manufacturers. The layout of PCB, power supply design and capacitor selection are specified. The graphics card designed by the public version can meet the needs of users in quality and stability. 3. At present, the vast majority of graphics cards on the market are basically public versions, because the use of public versions can reduce research and development costs, especially in the speed of launching new graphics cards, which has caused most graphics card manufacturers to use public versions in order to catch up with the new ones. 4. This is also the reason why graphics cards with the same chip and the same memory specification have the same basic performance. At the high end, there are few non-public graphics cards because of the high requirements for chip memory specifications. To distinguish between public graphics cards, generally look at the public numbers on PCB, such as P456, P2 16.