An apples to oranges situation.
I expect that you know that you are comparing a PCP (S410) to a springer (TX200) and presume that you are aware that the PCP requires a high pressure air source.
Most of the sound from a springer comes from the mechanical movement of the internal parts. It pretty well is what it is and can't be dampened. With the PCP adding a moderator can really make them quiet so it could be adjusted to suit.
I have the S510 and the TX200, PCP and springer, and use them for different applications. Don't find either of them to be particularly loud.
I suggest that your other shooting needs/requirements should be considered first.
Cheers!