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I am running XFCE-Manjaro on a i5-7400 CPU and 16 GB RAM plus Nvidia GTX 1650 graphic card 4 MB RAM. Since more than 1 week I am trying to get much faster rendering via h264_nvenc than via software enccoding on CPU. All I have tried, did fail.
My render settings are:
f=mp4 vcodec=nvenc_h264 g=120 global_quality=16 bf=2 acodec=aac ab=%audiobitrate+'k'When rendering a video project of about 30 minutes length at 1920x1080 @50 fps - VideoBitrate 24.248 kB/s - yuv420p – Audio 48000 Hz 1536 kB/s PCM signed 16-bit, it will need 2:53:28 to finish. Output is also 1920x1080 @50 fps.
Astonishing, rendering time is independent from "global_quality" setting and it does not depend from, when I am using another audio source like AAC-audio instead of PCM. PCM-audio comes from my Sony a6400 camera.
When I do software rendering via CPU with similar settings, the rendering will consume only a few minutes more.
The temperature of the graphic card will rise at more than 10°C, when rendering with h264_nvenc. So I believe, that it is engaged in rendering process. It will keep cool at near case temperature of the PC on software rendering via CPU.
CPU load will be around 70% when rendering, independent from which encoder I am using.
My experiences here are in contradiction to that, what a guy called unicks.eu has posted in two videos on YouTube:
https://www.youtube.com/watch?v=5mcNi2vGc7Q
https://www.youtube.com/watch?v=vFYsoTXNQyc
I hope, someone here can help me with this,.
Last edited by simple-user (2020-05-18 21:07:58)
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