The full name of SLI is Extensible Link Interface. It uses two PCI Express graphics cards of the same model on a motherboard that supports dual PCI Express X 16 slots (note that there are only slots here, not all of them have 16 PCI Express channels) through a special interface connection mode, so as to enhance the graphics processing ability of the system.
With the continuous development of SLI technology, there are many restrictions on platform hardware at first. For example, you must use exactly the same graphics card (the same model of graphics card from the same manufacturer, even the BIOS of the graphics card must be the same), and you must also use the SLI bridge between the two graphics cards. Only Geforce 6800 Ultra/6800 GT and 6600GT display chips support SLI. Now, you can set up SLI using graphics cards with the same display chip made by different manufacturers. For low-speed graphics cards, there is no need to use SLI bridge (but the performance is lower than when using SLI bridge). The display chips supporting SLI are also extended to all Geforce 6 series and all Geforce 7 series except Geforce 6200/6200TC. However, because the distance between the two PCI-E slots of each motherboard is not fixed, the SLI bridges of different motherboards cannot be replaced generally.
In theory, SLI technology can double the graphics processing capacity. In practical application, except for a few tests, the graphics performance in the actual game can only be improved by 30%-70%, and in some cases there is no performance improvement at all. In addition, there are not many games that can support SLI well at present. Of course, with the improvement of the driver, these problems should be solved step by step.
Relatively speaking, ATI exchanged fire for NVIDIA's SLI technology.
The firefight is similar.
Simply put, it is to build a dual-card platform, a computer, two graphics cards and an output interface (the interface of the main card).