What processor architecture is printed on the box? There isn't one. It is irrelevant. Backwards compatibility is a feature; it can be accomplished through a

What processor architecture is printed on the box? There isn't one. It is irrelevant. Backwards compatibility is a feature; it can be accomplished through a number of means. The Xbox One, as a product, either offers that feature, or it does not. Consumers, possessing the power of the purse, either accept the available features or they do not. The technical details, while very important to the engineers building the system, are irrelevant to the consumer.