The minimum TOEFL score necessary for admission is 250 depending on whether you take the computerized or written test. In addition, a minimum of 60 or 25 is required on the oral comprehensive section. For the TOEFL Internet Based Test (IBT) the minimum total score is 100; 26 on each section except writing which has a minimum of 22. The minimum quantitative GRE score is 160. There are no minima for other sections of the test. More information about TOEFL and IELTS tests can be found on the Yale Graduate School website.