XBox One SOC has a CPU, GPU, and 15 special-purpose processors. Total of 47MB of storage on-chip.
At 363mm2 with over 5b transistors the Xbox One SoC designed by Microsoft and AMD is a very complex SoC.
Audio offload processor in XBox One SoC are "completely designed by Microsoft" and have "more than a CPU core worth of processing
XBox One CPU has eight "modified" AMD Jaguar x86-64 cores, in two clusters of four cores. Modifiations to memory sharing & bandwidth.
Looks interesting but I have no idea what 90% of it means.