Tomb Raider (2013)
The Radeon HD 7990 is clearly a better choice for playing Tomb Raider since its performance is higher than what you get with either GeForce GTX. You also get high bottom speed with any of these cards.
There are some problems with bottom speed in this game although the average frame rates are very high:
The Radeon HD 7990 is a little faster than the GeForce GTX 690. The GeForce GTX Titan is slower than the leaders again.
Metro: Last Light
Here is what we have with the Advanced PhysX option turned on:
The AMD Radeon HD 7990 is obviously on the losing side since the additional physics effects have to be done on the CPU, which is less efficient than Nvidia’s GPUs in this respect. But if Advanced PhysX is turned off, the Radeon HD 7990 is quite competitive against the GeForce GTX 690.
Here is a table with full test results, so we can proceed to our summary charts: