Considering that Perseverance is running your standard rad hardened PPC from the late 90's, I think that speaks a bit to the expected lifespan and importance of Ingenuity. If the POC goes well, I expect we will see hardened components in the next revision. Then again, if Ingenuity is doing anything too modern, I doubt a PPC 750 will be able to keep up.
It is the main processor, tying together a number of hardened FPGAs. They’re also old, but the point is they can be reprogrammed from Earth to do whatever NASA needs.