Far behind a GTX960 still.
17% is nothing major when the 980 is doubling the R290X performance. Not much AMD can do when the fail devs don't care about AMD GPUs during their years of development, after receiving feedback from backers of the bad AMD performance all that time they did nothing but game AMD 20 steam keys on release to troubleshoot.
Also, where's the NV drivers to fix Kepler? A gtx960 is pwning 780/Titan as soon as light rain is on, its worse when its heavy rain.
http://www.computerbase.de/2015-05/project-cars-guide-grafikkarte-prozessor-vergleich/2/