The PowerVR Series9XE GPUs are designed for entry-level mobile devices and cost-effective products, while the more advance Series9XM chips are aimed at mid-range smartphones/tablets, premium gaming set-top boxes and infotainment systems. Imagination's first NNA chip offers similar features to Apple's A11 Bionic and Huawei's Kirin 970 SoCs, but in a more energy-eficient envelope.
https://www.notebookcheck.net/Imagination-releases-new-PowerVR-mobile-GPUs-and-its-first-Neural-Network-Accelerator.249928.0.html