It has been revealed via AMD's press deck that the hardware manufacturer's flagship GPU i.e. the R9 290X features as many Asynchronous Compute Engines as the PS4.
via N4G: pc news feed http://n4g.com/news/1371829/amds-flagship-r9-290x-has-same-number-of-aces-as-the-ps4
via N4G: pc news feed http://n4g.com/news/1371829/amds-flagship-r9-290x-has-same-number-of-aces-as-the-ps4