I got a i5-760@4GHz and 970GTX and notice massive framerate drops when moving in the city - especially around Goodneighbor. Reducing Shadow Distance from Ultra to Medium solves this - but has a negative impact on the visuals.
I've read that the gambryo engine renders shadows on the CPU. Is that correct and would it help to go for a new PC maybe with a 6- or 8-core CPU?
Thanks,
Michael