I don’t think there are benchmarks specifically for hosting minecraft, but I guess general purpose benchmarks can give you a pretty good estimate. You could spin up a server on your homelab and just stress-test it a bit to see if it is noticeably worse than the other instance. You’ll have to weigh the saved costs against the (likely) worse performance. on a side note: there are great options to make minecraft playable on servers with less CPU power, like using i.e. a paper server, performance mods, or lowering the renderdistance and ‘faking’ more renderdistance with client-side mods like bobby or distant horizons.