No, Aston have different requirements for different courses. Check on ucas or the aston website for requirements for your course. Computing for business (im applying to), only require 260 points (BCC), but finance and managment courses require much higher (generaly ABB-BBB). Thats because Aston has one of the best business schools in the country (some argue that it is the best), so for those courses it is more competitive, hence the higher entry requirements.