Unfortunately, all the model numbers are located somewhere on the lower back side of the refrigerator so I can't see them without pulling it into the middle of the kitchen. From reading the stuff above, the woodgrain one in the pic is a larger, fancier model (now of course I'm jealous!).
On the front of mine the Frigidaire badge plate says "Frost Proof Sixteen Imperial", so it must be 16 cubic feet in capacity. It also has two mechanical foot pedals, one for the freezer and one for the refrigerator. Both doors can also be opened in the normal manner by pulling the side handle area of the "Wing-Swept" door. I really like that part of the design. It is easier to use, easier to clean, and much more handsome than a separate handle.
I suspect this “Power Capsule” is really just a vane type compressor. Mine appears to have a pretty conventional cooling system, with a compressor underneath, a large traditional type condenser coil on the back of the cabinet, and an evaporator coil under the aluminum bottom of the freezer. The blower motor sucks air from this evaporator and blows it up a channel in the back of the compartment into the refrigerator section above. The only issues I’ve had with it in 15 years are the defrost heater and that blower motor. The heater always worked, but someone had moved it around so it wasn’t defrosting correctly; it took a bit of trial and error to locate it in the right spot. The blower just got noisy and after oiling it a few times I replaced it.