While the consumer-level design of the Xbox One’s Project Scorpio has yet to be unveiled, Gamasutra has posted some pictures and specs detailing the system’s dev kit. Historically, these units can either look very similar to the final product, or not-at all.
One of the main differentiators are the technical specs; the Scorpio’s dev unit is more powerful than the retail console.
"At a high level, it's much easier for a game developer to come in higher and tune down, than come in lower and tune up. Or nail it. That just rarely happens,” said Kevin Gammill, Microsoft’s group program manager for the Xbox Core Platform. “Our overarching design principle was to make it easy for devs to hit our goals: 4K, 4K textures, rocksteady framerates, HDR, wide color gamut, and spatial audio.”
Other features include a built-in OLED screen displaying system performance, like FPS count. They also vent from the backs and sides, meaning they’re stackable.