It doesn't surprise me that AMD is sourcing 3rd party designs that are then sold under their branding. It saves a lot of development resources, something AMD is very short on. If those products do take off, then AMD can later decide to move development in-house and start to refine parts toward a larger optimized Radeon platform.
Dual Opteron 6376, 96 GB DDR3, Asus KGPE-D16, GTX 970
Mac Pro Dual Xeon E5645, 48 GB DDR3, GTX 770
Core i7 3930K@4.2 Ghz, 32 GB DDR3, GA-X79-UP5-Wifi
Core i7 2600K@4.4 Ghz, 16 GB DDR3, GTX 970, GA-X68XP-UD4