oc r5 5500
oc r5 5500
It's feasible. AM4 processors aren't restricted from overclocking. The CPU or board you're using might handle it, but you can't be sure.
Yes, it can reach 5.0GHz using an MBO B550 with 1000W power.
Perhaps no one can say what your device is capable of. You need to try it yourself to discover its potential.