Win/Mac performance gap

[mpro31]

Hi to all!
I own a dual OS system (macOS and windows) and when I run IndigoBench there is a significant difference in performance.
the difference is about 45% better in favour of windows. My system is mac pro 5,1 (flashed 4,1) with nvidia 980 / High Sierra and Windows 10. I 've also ran Geekbench opencl and there was still a difference but much smaller, like 10%. Do you happen to know what is the problem?

[OnoSendai]

Can you paste your results? Is this CPU or GPU?

[mpro31]

GeekBecnch 4 / opencl
116020 win
122571 mac

[OnoSendai]

Without analysing this in depth it's hard to know for sure, but it's probably due to better OpenCL drivers on Windows.