is the AWD equipped with a defrintial?
You mean Differential ?
There are three differentials on AWD vs two with part-time 4wd.
There is an extra center differential that allows the wheels to turn at different rates from the front and rear of vehicle besides the typical front and rear differentials which allow slippage between the driver and passenger sides of the vehicle.
There a several versions of AWD, so can’t give you specific unless you give more info in the vehicle in question.
Each axle, front and rear, will have a differential. What moves the power to the front and rear axles is what differs. This is usually referred to as the transfer case. There are some that are “viscous” and some electronically controlled transfer cases and yet more technologies involved.
If you tell us the make, model and year, we can be of more help.