I don't think anyone would suggest Germany didn't perform a minor miracle by rebuilding as quickly as they did (with massive support), but the Russians went from having half their country burned to the ground, to a world superpower (also with a large amount of support), in a shorter time span than it took West Germany to return to pre-war industrial levels.
p.s. many parts of eastern europe has been destroyed during the war as well; and was getting rebuild themselves.
When I was young I heard a lot of crazy stories about the Russians in Germans (I grew up in the Erzgebirge mountains where the Russians mined the Uranium for their atomic bombs, think of an Eastern 20th century gold rush), some of those stories are how entire production lines were moved onto trains and to the Soviet Union nearly over night (they had a lot of experience with this since a few years earlier the Soviet Union basically moved their entire military production a few thousand kilometers eastward, out of the war zone).