The difference is that in Germany "High German" spoken with different dialects. In Austria, by "Austria German" was assumed when other words are used for the same things. In Austria there are very many dialects can vary even from one village to another village. Where the distanze is only 10 kilometers. Myself I live in Lower Austria, which is a province of Austria and here we are on Inoviziele divided dialect zones such as "Mostviertler'isch" "Waldviertler'isch" "Mühlviertleri'sch" and also share "Wiener'isch. We have to even buy their own dictionaries for these dialects.