The unit listed on AnTuTu has the model number A5000 and comes with a Qualcomm Snapdragon 835 inside, 6 GB RAM, 64 GB internal storage, 16 MP cameras (not clear if a dual setup on the back or one on each side), all with Android 7.1.1 Nougat on top.
http://www.notebookcheck.net/OnePlus-5-surfaces-on-AnTuTu.221740.0.html