If you you see all the links the GPS is not assisted to is a "true gps"
Scroll to step 16 and you will see the model number.
http://www.ifixit.com/Teardown/Nexus-7-Teardown/9623/1
Gps model specs.
http://www.broadcom.com/products/GPS/GPS-Silicon-Solutions/BCM4751
Current Models
http://www.broadcom.com/products/GPS/GPS-Silicon-Solutions
In that post I was referring to the "old droid." If the Nexus 7 has a true GPS then that's great. Although without some sort of data you can't get turn by turn with google maps.
In what sense are you certain and of what definition of aGPS do you refer? Im not challenging you here just making clarifications. It doesnt require any use of wifi and is just as accurate, the time it takes to get a fix can be slightly longer but is only really noticable for instance if theres a heavy cloud cover or other obstruction. You have to have a proper GPS to take advantage of the GPS functionality, Google maps doesnt do offline maps, at least in its current release version although they did announce that they are rolling that out soon. The point is yes it not only works but it is just as accurate.
See my above reply. I usually don't have a good experience with aGPS without some sort of cellular data. Maybe that's just my region where I live and with devices that I own. Google maps does do offline btw.