In a few games, namely Crysis 3 and Battlefield 4 - yes. For the huge majority of games there will be little to no difference.
Some upcoming games claim to utilise more cores, but it's speculation at the moment.
What would be the difference in frame rate on those games?
Assume the 6300 is slightly above the 4170:
The 6300 would be slightly below the 6350:
Bear in mind your FPS would be lower with a 760.