the unsw credit point transfer sets quantitative methods a (unsw) = ecmt1010 (usyd), but in fact it is qmb and ecmt1010 which are more or less the same course. ecmt1010 is about the same difficulty as qmb. you won't learn much of the stuff in qma in the usyd core commerce subjects
not sure about accounting but form what i've gathered the content in accta at usyd and unsw is about the same, but unsw's exams for accta this year seemed to be much more difficult than the ones i did at usyd last year, where the averages were quite high