In Tomb Raider, we saw an 11% performance increase from our overclock, which was enough to boost the R9 290X within striking range of the GTX Titan.
Our overclock provided just 4% more frames in Metro: Last Light at 2560x1600, though you will notice considerably more performance at 1920x1200.
When testing our overclock in BioShock Infinite we saw a 12% performance boost, allowing the R9 290X to overtake the GTX Titan.