GTA V Best settings for GTX 1060

You should be able to put everything "Very High" and use extended distance scaling at about 50%. I found on GTX 980 which has similar performance, using TXAA 2X looked best. Shadows is up to your preference, I used PCSS.

One tip with GTA V is that you disable/enable Vsync after loading, which seems to change it from double to triple buffering behaviour.
 
Ill try tha, last time i messd around with settings (youtube benchmark settings)i got screen tearing after disabling v-sync also grass is a fps killer. and about TXAA, why not MSAA X4 with FXAA? https://steamcommunity.com/app/271590/discussions/0/611702631240840474/?l=english