The premium G52 GPU will be featured in mid-range mobile products, while the G31 GPU is designed for entry-level smartphones and tablets. Furthermore, the V52 and D51 processors deliver improved performance with reduced die sizes.
https://www.notebookcheck.net/ARM-announces-new-Mali-G52-31-GPUs-along-with-video-and-display-processors-for-mobile-devices.287474.0.html