Performance in Simulators
The SLI tandem is roughly equal to the Radeon HD 5970 in this game, the AMD solution enjoying a small lead in two out of the three tested resolutions. Comparing the results to those of the GeForce GTX 580, we want to prefer the single top-end card again as it is much easier to use.
Performance in Strategies
The excellent average frame rate of the GeForce GTX 560 Ti SLI in BattleForge cannot change our opinion about it because the single GeForce GTX 580 offers a higher bottom speed. At a resolution of 2560x1600 the SLI configuration cannot maintain a playable frame rate whereas the GeForce GTX 580 can do that and costs about the same money.
StarCraft II: Wings of Liberty
Our last gaming test shows that the GeForce GTX 560 Ti SLI configuration has high potential, yet it is not as high as to make a dual-GF114 card an indisputable leader. The Radeon HD 5970 is always a little faster, so the future GeForce GTX 590 will have to be something better, e.g. a pair of GeForce GTX 580s on a single PCB and with reduced clock rates to keep the resulting product’s heat dissipation within reasonable limits.