The QS Top Universities World Rankings investigates 2000 universities worldwide and ranks the global top 800. The most important indicators for this ranking are: academic reputation of the university and researchers, the number and quality of the academic output, the university's student numbers and the international orientation of the university.
The Times Higher Education World University Rankings (powered by Thomson Reuters) judges world-class universities across all of their core missions: teaching, research, knowledge transfer and international outlook. The reputation of the university is an important factor as well. The ranking consists of the top 500 universities of the world.