sizzling :
So far Ryzen is not matching Intel in games so buying Ryzen is betting on things getting better and I remember when many used to say the FX8XXX series would catch up Intel with optimisation and that never happened.
Actually, if you compare the FX8350 against other chips from back when it was new and now, after a few years of software, scheduler, etc. optimizations, the FX8350 did catch up with the i5-3570 in many games over time or even beat it.
Significant optimizations did happen.