How would fsx perform with these specs?

[westman 257]

1060 6gb works really great in P3D , you ar CPU bound with 1920x1080 even with +5ghz 7700k.

2560x1440 you ar almost CPU bound 95% gpu usage with 4.8ghz

4k , 3840x2160 you get 100% with over 4.5ghz on CPU but it run it at solid 30fps with quite high settings.

Its not a Titan X Pascal but performs very very well , little stronger than a 980.

For all you that run 1920x1080 and 4.5-4.8ghz you not need more.