Total War: Shogun 2
It is in Total War: Shogun 2 that the Radeon HD 7970 CrossFireX configuration scores its third win over the GeForce GTX 690 which in its turn is much faster than the GeForce GTX 680.
The Radeon HD 7970 CrossFire can only compete with the GeForce GTX 690 in Crysis 2 until we turn antialiasing on. When antialiasing is enabled, CrossFireX turns off, so the CrossFireX tandem becomes no faster than the single Radeon HD 7970. Meanwhile, the GeForce GTX 690 beats the GeForce GTX 680 by 85% and more!
The GeForce GTX 690 wins DiRT 3.
Hard Reset Demo
The CPU-dependent Hard Reset can only help us compare the cards when antialiasing is turned on. The GeForce GTX 690 wins then.
Batman: Arkham City
The GeForce GTX 690 is unrivalled in Batman: Arkham City, too.
The CrossFireX tandem has some problems in Battlefield 3, so Nvidia’s new card meets no competition:
In conclusion here is the table with detailed test results for your reference: