Well, my old GTX970 did a okay job but with P3D 3.4 and Active Sky 2016 more power was needed. I vent for a Asus GXT1070 8GB. Does the job very well, good FPS locked at 30 on 5760X1080. Still working on blurry textures on long distance but it seems many having this issue to,
A good tool before you install a new driver is DDU. It removes your old drivers and clean your PC before installing a new.