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Question Is 500w enough?

500w should be sufficient.
But, it looks like the thermaltake smart psu is tier 6 on this list:
Do not go cheap on a psu.
Look at something like a seasonic focus 550w


2 issues I see are single channel ram and the PSU.
With Ryzen you want/need dual channel for best performance.
The PSU is not a good place to skimp and that PSU is not a good unit. Problem is right now PSU prices are nuts. Even a decent budget model like a CX 450(is enough for the rx 5500 or 1660) is $70 and the 550w version is $80.