After installing these drivers, I get a nice boost in FPS in Forza Horizon 3 (steady 60fps @ 4k resolution) compared to 17.10.1.
BUT... the game now has texture errors with these 2 drivers (17.10.2 + 17.10.3), which you can reproduce by driving from A to B on my image attached.
You will see it on the walls, cliffs, and then it's like a plague spreading to the ground and foilage.
The game at some point will crash on me, so I am forced to run 17.10.1 for now.
I really hope you look into this, together with the HDR TV Glitch in Forza Motorsport 7.
My system: Intel 4790k, 16GB ram, Sapphire Vega 56 - Windows 10 Fall Update (everything updated).