Project Quantum is one of the coolest things AMD has ever shown off, but it was never delivered to market. Project Quantum and an insane amount of power inside of its small, and super-unique chassis - but used an Intel CPU at the time, alongside the dual Fiji GPU when it was debuted at E3 2015.
But with AMD's next-gen Zen CPU architecture nearly here, the company can move away from using its competitors' faster CPUs, with one of its own. According to the latest rumors, AMD postponed the release of Project Quantum for two reasons.
First, an "internal decision to market the Radeon Duo Pro, not as a purely gaming product, but as a professional high performance solution". Second; "The lack of a high performance AMD CPU and Motherboard solution (the original Project Quantum uses an AsRock Motherboard) that could accompany the powerful dual GPU".