Yes, I understand they are different models, but informally both are referred to as Cubes (obviously due to the shape of the case.) In fact, if you look on ebay

Yes, I understand they are different models, but informally both are referred to as Cubes (obviously due to the shape of the case.) In fact, if you look on ebay, the first "NeXT Cube" I found was actually a "NeXT Computer." I believe they may both actually have the same N1000 model number, despite CPU differences.