Kernel mods for ffmpeg h264_nvenc ONLY?

Have archlinux on Intel boxes, Aur-sources for Nvidia encoding
H264 encoding. HDMI/Video output is going thru intel hdmi ports. [not gamer]
laptop has 950m, and newer desktop 1050ti, and spare 1050 for other boxes.
the ffmpeg H264_nvenc encodes 10x faster [good encode] other gui-systems not stable
for NVIDIA kernel-mods yet?
What kernel-mod needed for encoding only? modprobe nvidia,… for encoding then rmmod
to remove those kernel mods??