difference between private and international school

Hello,

As I wasn't raised in Hk, thus not exactly familiar with the HK school system, though I would have to say it is not the most perfect system with my preliminary study of it from news and forums.

Anyways, I have a question and wonder if anyone can share some insight/guidance with me. I have two young children, and I definitely know that I do not appreciate the level of school works in most local schools, thus I am more towards activity based approach. Given that, can anyone help clarified the major difference between private and international school Although the kids have overseas passport, but unlikely we will go back in the near future(eg within 5 years)

I believe there a few DSS/private with train-through system, is there any difference between those graduates and local govt school graduates when applying for university? Same question for int'l school, any difference?

With two kids, tuition fee is also a factor to be consider, thus I want understand more between the different types of school.

Million thanks for your help