In case anyone else is wondering what causes the different models for different markets

>First, Qualcomm can't produce enough processor to fit in all of the Samsung's phones. Second, snapdragon is too expensive, especially if you buy it in other countries. So, Samsung only uses snapdragon in countries where Qualcomm sells them cheaper.

As well as wanting to be exposed into more markets

https://www.quora.com/Why-does-Samsung-use-Exynos