Yep. Their progression thru the amatuers on much different time/development frames. Gabriel's HS team was actually very bad, and he'd put up all sorts of crazy stats. He really blew up in a short amount of time, he was outside of the top-100 and then Duke and UK wanted him in the blink of an eye.
Aminu on the other hand was a boss in HS and college and a lotto pick. He's a bit bigger and a bit more fluid, better passer, better dribbler. I remember watching him bust Greg Monroe's ass real bad even tho he ws the consensus #1 player in the class.
Gabriel is clearly a better 3pt shooter at this stage though, it's not even close. There's many similarities tho,both ball hawks/excellent motors, great intangibles, team first low-profile guys.