Graphics slot

The interface type refers to the type of interface used by the graphics card and the motherboard. The interface of the graphics card determines the maximum bandwidth for data transmission between the graphics card and the system, which is the maximum amount of data that can be transmitted instantaneously. Different interfaces determine whether the motherboard can use this graphics card. Only when the motherboard has the corresponding interface, the graphics card can be used, and different interfaces can bring different performance to the graphics card.

At present, various 3D games and software require more and more video cards, and the amount of data that needs to be exchanged between the motherboard and the graphics card is also increasing. Past slots have not been able to meet such a large amount of data exchange, so usually the motherboard is Slots with specially inserted graphics. If the transmission speed of the graphics card slot does not meet the requirements of the graphics card, the performance of the graphics card will be greatly limited, and even the best graphics card can not play. Since the development of video cards, there have been several interfaces such as ISA, PCI, AGP, and PCI Express. The data bandwidth that can be provided increases sequentially. Among them, the PCI Express interface introduced in 2004 has become the mainstream to solve the bottleneck problem of graphics and system data transmission, while the ISA and PCI interface graphics cards have basically been eliminated.

In addition, when it comes to graphics card slots, there is a situation that needs to be explained, that is, some motherboards are limited by the chipset, and they cannot have a dedicated graphics card interface, such as AGP or PCI Express interface. However, motherboard manufacturers through a special way, on the motherboard to do a corresponding graphics slot, you can connect the corresponding interface graphics card, but this slot is actually far from the speed you can achieve, can only be considered slightly better than no, typical The examples are the AGI and AGU slots mentioned below. What kind of motherboard will this happen? This is usually the case with motherboards that use integrated graphics chipsets, such as the 845GL motherboard; motherboards without integrated graphics rarely have this type of situation, with only a few exceptions, such as VIA PT880 PRO. If the motherboard of the chipset has a PCI Express slot, then the speed can only be 4X instead of the 16X it should have. And for a motherboard with integrated graphics, whether its graphics card slot is worthy of the name, mainly depends on the support of the chipset. This is rarely the case with Intel chipsets. You can check the detailed information of each chipset through the connections below.