in theory, SLI technology can double the graphics processing ability. in practical application, except for a few tests, the graphics performance can only be improved by about 8% in actual games, and in some cases, there is no performance improvement at all, and there are not many games that can support sli well.
with the improvement of the driver, the practicality of SLI is gradually improved. Because games that don't support SLI are often enough with a graphics card, games/programs with high system performance often support SLI.
when two graphics cards are used to form a SLI configuration, these games using GPU can achieve a significant performance improvement of up to 2 times. Most of today's hottest games and new generation games belong to this type. However, some applications (usually older applications) are still limited by factors other than GPU processing power.