Overclocking performance boost[ Both CPU and GPU]

Ketku

Honorable
Nov 5, 2013
50
0
10,640
How much would i gain more power/performance in overclocking these, now i know its hard to say how much i can oc them but if you can say some numbers would be nice..
CPU::
FX-8350 with H100i cooler
i7-4770k any 30$ cooler
i7-3770k any 30$ cooler
i5-4670k any 100$ possibly H100i cooler

GPU:
R9 290 Windforce 3

So basically i'm asking how much would i gain in percentages or something like that.