when i update my drivers my graphic card name change to r7 m340 or m445dx and both of them works very bad. when i bought this computer i played league of legends with 120 130 fps with m440 drivers but now its 40 50 fps
This is the answer that one of the main Moderator's of AMD Forum gave to another poster concerning the same issue that you are having.
Graphics cards in laptop computers are customized by the manufacturer to meet their specific design requirements,.
AMD provided reference drivers for laptop products that use a generic Device ID. This has no impact on performance,
If you want the GPU to appears exactly as specified by the manufacturer, you will need to use drivers provided by the laptop manufacturer.