i7 4770
Gigabyte Z87-HD3
RX470 4GB
I also have the issue which is the overall performance, benchmark performance is significantly lower than average on any GPU. GTX760 and RX470 performance is almost the same here (around 40-50 fps on Cinebench r15 while performance on Windows are around 60-70 fps)
CSM is disabled. All recommended BIOS settings
Send me.zip
Sorry,I forgot to enable iGPU before send the file.
Decoder is fine while iGPU is enabled