@poeticwarrior: The hammer gives her the strength of Thor, alongside many of his other physical stats. It's probably due to Mjolnir being tied to Thor's life force or something.
So she's basically old Thor with the hammer? Why do people say female Thor would lose against a hammerless Thor? What makes regular Thor so strong? How strong is Thor without the hammer? Anyone has feats of him without the hammer?
Thor's physical strength doesn't come from the hammer. Thor is strong because he's strong. His hammer replicates his physical abilities for anyone who wields it and is proven to be worthy enough to gain his powers. Anyone who says female Thor would lose to the male Thor is making facetious comments due to fanboyism and/or negative reactions to the fact that Thor got momentarily sidelined by a replacement. They would both have the same powerset and power level; the only difference is that Mjlolnir allows for better weather manipulation along with a bunch of other abilities. The only way female Thor would lose is if Thor fights with experience, otherwise it's a literal stalemate between the two or female Thor wins because she has extra abilities from the hammer.
You want feats of hammerless Thor, just look up feats of him with the hammer and pretend he's not holding anything because there won't be a difference.