Got problem with my r9 380 4GB graphic card.
Everytime when i want to play GTA V or Fallout 4 i need to change resolution to play normally. After first launch those game's got massive FPS drops, after i change resolution problem dissapears (In GTA V.) Fallout 4 doesnt have option to change resolution in-game. I need to do it by launcher so i need to shut down game - in this case problem still exist.
Got latest drivers.
Using windows 7 64bit with SP1
Intel core I5 @3.40 MHz
8GB DDR3 1600mhz
Any ideas why this resolution problem appears?