Performance-wise yes, logicaly the difference would come from the driver part. For the firmware, it's hard to know, i think only someone from AMD can answer t

Performance-wise yes, logicaly the difference would come from the driver part. For the firmware, it's hard to know, i think only someone from AMD can answer this. It's technically possible if part of a firmware is used only by the Windows driver for example. After, I have no idea, if it's the case...