Texture flickering, pixelated shadows, texture-popins, Bad AA, Any solution?

My games look exactly the same in the videos (the second shows more clearly) my setup is PentiumG4560 / Rx 470 4Gb xfx / 1x8Gb RAM.

 

I do not know what I do, I already researched and found nothing, only people complaining!

 

texture flickering, pixelated shadows, texture-popins, low draw distance - YouTube

 

R9 380 War Thunder texture flickering - YouTube

The videos are not mine, but the defect is the same, in some games it gets more in others less.

 

One fact is that when I change something in Games or in global settings of Radeon software, it does not change anything in the game.