How are your ambient temps and case airflow?
70-75 is fine, but I wouldn't expect to see such a wide spread between two units of the same card (they are the same model, right?).
when idle the cards at 30c and i have 2 200mm intakes and 1 200mm and 1 120mm exhausts so there is plenty of flow. and they are the exact same card. but my friend is also a joker so i didn't know if he was joking or not... haha thanks for the info