Hyper-Q -- This enables multiple CPU cores to simultaneously use the CUDA architecture cores on a single Kepler GPU. This dramatically increases GPU utilization, slashing CPU idle times and advancing programmability.
In some cases the technologies sit side by side in devices - Apple's iPhone 5, for example, features a PowerVR GPU based on Imagination's architecture, and Apple's A6 CPU which is based on ARM's work.
The Xbox One's architecture -- equipped with a new x86 CPU -- prevents it from being able to run games designed for the 360's eight year old Xenon processor.