enough to make it work like a ryzen
remember that bottleneck is just the inability of one of two parts to work as fast as the other, so some possible potential is wasted
that cpu is old and not powerfiol, overclocking it should help a bit but not much
in the first place you should be using it and then if you decide that the results in frames per second are not what you want, you could see how much is the gpu being used and the cpu, if cpu is being used 100% and gpu only 50, well, overclock as much as you can and pray your motherboard and psu can handle it
in the end, the real solution is just accept the cpu and gpu as they work now, or buy a new mainboard, cpu and ram, something more recent, like rizen