hevc_nvenc option information

I tried to encode to hevc_nvenc but the documentation on FFmpeg is too less and all options are not clearly defined. So if anyone can be good enough what all options do and what settings and filters can be used with which setting to get a good encode.

The options can be found out here

Some example of the information I seek is similar to following:

ffmpeg.exe -hwaccel cuvid -i inmovie.mov -c:v h264_nvenc -pix_fmt yuv420p -preset slow -rc vbr_hq -b:v 8M -maxrate:v 10M -c:a aac -b:a 224k outmovie.mp4

Parameters
-hwaccel cuvid uses NVidia CUDA GPU acceleration for decoding (also working: dxva2)
-pix_fmt p010le YUV 4:2:0 10-bit
-c:v hevc_nvenc uses HEVC/h265 GPU hardware encoder
-preset slow HQ gpu encoding
-rc vbr_hq uses RC option to enable variable bitrate encoding with GPU encoding
-qmin:v 19 -qmax:v 14 sets minimum and maximum quantization values (optional)
-b:v 6M -maxrate:v 10M sets average and maximum bitrate allowed for the encoder

This can be found here.

This is the setting I use for NVENC HEVC on Turing cards

 ffmpeg -strict 2 -hwaccel auto -i "inputfile.mp4"  -c:v hevc_nvenc -rc vbr -cq 24 -qmin 24 -qmax 24 -profile:v main10 -pix_fmt p010le -b:v 0K -c:a aac -map 0 "outputfile.mp4"

Increase 24 - 27 or 30 for lower quality and better compression