GPU upgrade expectations
I'm considering upgrading my GPU from a GTX 660Ti to a GTX 970. Does anyone know what kind of a performance increase I can expect from this upgrade?
My problem is when working on complex scenes with multiple light sources and multiple particle simulators the whole user interface is so sluggish its almost impossible to work. Trying to move a parameter slider is useless because the user interface is so slow to react that fine adjustments are impossible and must be typed in. I've tried breaking up my composite shots into several composite shots and enabling proxys, but it doesn't help the sluggishness of the user interface. I'm also interested to know if it will have any meaningful effect on render times. Currently I'm trying to render a complex scene that is 10 seconds long and rendering it takes ~6 hours so I'm looking to improve that as well.
My current setup is
i7 3770k (not overclocked)
16 GB Ram
Any information on performance gains with GTX 970 would be very much appreciated.