Company of Heroes 2
To see the effect from the SLI technology in this game, we need to choose the maximum visual quality settings:
So, at 2560x1440 with maximum antialiasing the GeForce GTX 780 Ti SLI tandem is 80% faster than the single GTX 780 Ti, 80% faster than the GeForce GTX 690 and 64% faster than the AMD Radeon HD 7990. Why? Well, this game doesn’t work well with multi-GPU technologies, so you have to enable AFR mode and put up with screen flickering. Of course, the frame rate goes up, but the game becomes downright unplayable. There is no point in building a SLI tandem out of two GeForce GTX 780 Ti cards for Company of Heroes 2.
Total War: Rome II
Our SLI tandem is useless in this game, too.
Batman: Arkham Origins
The 2-way GeForce GTX 780 Ti SLI can ensure a 73% performance boost over the single GTX 780 Ti in the most resource-consuming mode of this game. It is also far ahead of the dual-processor cards here.
The two GeForce GTX 780 Ti cards in SLI mode aren’t very fast even at 2560x1440 with 4x antialiasing.
Our SLI tandem is only up to 34% faster than the single GTX 780 Ti. It also beats the GeForce GTX 690 and barely outperforms the AMD Radeon HD 7990. The developers of the GeForce driver (or of the game itself) seem to have some work to do yet.
Here is a table with the full test results: