Of course. You can go to Harvard with an IELTS score of 8, and the minimum IELTS score for undergraduate students is 7.0; Applying for a master's degree at Harvard University requires an IELTS score of 8.0; IELTS 7.0 is a good level, and IELTS 8.0 is an excellent level, so IELTS 8 can go to Harvard. But this is only about speaking English. If you get this score, you won't be restricted. Other achievements are also important. To study in the United States, most candidates still take the TOEFL, which is mainly applicable to applications from North American countries such as the United States and Canada, and IELTS is mainly applicable to applications from Commonwealth countries such as Australia and Britain. However, about 90% of the top 130 universities in the United States recognize IELTS. Most undergraduate colleges require IELTS 5.5 or 6, and graduate colleges require IELTS 6.5 or 7.