Germany: 4,300,000 to 5,500,000 military deaths
Soviet Union: 8,700,000 to 13,850,000 military deaths
Germany: 3.250.000 military deaths
Soviet Union: 13.600.000 military deaths
In another thread "How much percentage of the German Male population was lost by the end of world war 2? And how much did it affect the genetic demographic of Germany?" /u/Warband14 gives a nice explanation for casualty numbers.