nvenc

On the next screen, adjust the following settings:

    Encoder: NVIDIA NVENC H.264 (new)........
Uncheck “Enforce Streaming Service Encoder Settings”
Uncheck “Rescale Output”
Set the rate control to “CBR”
Set the bitrate to something appropriate to your Internet upload speed. The target is to get 720p, 60FPS streaming, so anything between 3500-6000 kbps would be appropriate.
Change the Keyframe Interval to 2
 Change the Preset to “Max Quality”
Change the Profile to “High”
Uncheck “Look Ahead”
Check “Psycho Visual Tuning”
Set the GPU to 0, default. This is to make sure that you use your primary GPU.
Set the Max B-frames to 2