On any device that isn't obscure, iFixit does a teardown detailing most of the parts on the board.
iFixit is nice, but it is not an answer to the request made by GP (an answer to which would be useful).
If you are looking for details directly from the device there are various commands to get info like dmesg, getprop. There are other ways (recommended if you have time and patience), like going into /sys/devices, but I really believe it is very common to have same parts for a single mobile device (I think Apple did it because of production problems)
[1] http://techbeasts.com/list-of-samsung-galaxy-s7-s7-edge-mode...