We should rather say, PowerVR GT7600 vs Adreno 530 or iPhone 6s Plus vs Xiaomi Mi 5 3D Graphic benchmark comparison. Whatever, Xiaomi Mi 5 has not been released so far, and the Chinese company has officially announced to release it on February 24.
Xiaomi Mi 5 has already went through 3D Graphic Benchmark test via GFXBench, and this benchmark comparison is based on GFXBench report. However, please note that the real life benchmark score may differ from the Sample model that was tested.
iPhone 6s Plus feature PowerVR GT 7600 six-core GPU that is probably the best GPU you could find in any smartphone in 2015. New year is about to bring many changes, but in the end Apple will launch iPhone 7 and 7 Plus, and they would probably claim their position back with Apple A10 CPU if lost during the year. You must be thing why we are talking about loosing the position during 2016, and the reason is Snapdragon 820 Chipset that would be accompanied by Adreno 530 GPU.
We have not seen any Benchmark Score so far that goes over Apple A9 single-core performance, but there are many to score more in multi-core. We will not talk about CPU Benchmark, but GPU only.
GFXBenchmark has not shown each and every detail of Xiaomi Mi 5, but we will tell you whatever it showed up with. Xiaomi Mi 5 has already been confirmed to feature Snapdragon 820 CPU and Adreno 530 GPU. It seems Adreno 530 is ready to beat PowerVR GT7600, this is what at least GFXBench report suggests. Both the model features FullHD Display.
Here is the comparative view of Apple A9 vs Snapdragon 820 3D Graphic Benchmark