Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: Radeon RX 570 Series ATI Technologies Inc. 4.5.13571 Core Profile Context 19.9.3 26.20.13025.1004 (PowerColor 8GB)
version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: rBf6cb5f54494e
Short description of error
OpenCL Cycles GPU rendering produces a different result. There differences in reflections and lightness/darkness.
Some tiles seem to be correct to the CPU result.
Exact steps for others to reproduce the error
Render the attached scene with CPU, then switch render slots and render with GPU to compare difference.
I am aware of a past issue on Mac OS that appears similar, but this is on Windows.