We have noticed that encoding with FFmpeg and nvenc in realtime the CPU utilization more than triples from CUDA version 11.4.2 to 11.6.2. At the same time, using CUDA 11.4.2 achieves slightly more frames per second. We also observed that FFmpeg uses 15 threads on CUDA 11.4.2 and 102 on CUDA 11.6.2,…

Nvenc performance degredation fromCUDA 11.4.2 to CUDA 11.6.2

marcomay October 23, 2023, 8:40pm 3

Hi, just reading this older post. I wonder if there are similar issues still present in recent FFmpeg 5.1.* versions. See related results in GPU transcoding performance comparision using FFmpeg 4 and 5 branches

Topic		Replies	Views
GPU transcoding performance comparision using FFmpeg 4 and 5 branches Video Processing & Optical Flow cuda , ffmpeg , gpu	1	1539	November 29, 2023
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Nvidia M60 - Ubuntu 18.04 - 450.80.02 not working with drr CUDA Setup and Installation cuda	0	747	November 3, 2020
FFmpeg NVENC CUDA Encoding Fails: "Failed to query nvenc max version" Video Processing & Optical Flow cuda , ffmpeg , nvenc	4	153	June 26, 2025
continuously using h264 cuvid with h264_nvenc makes the encoding process hang GPU-Accelerated Libraries	2	4425	May 11, 2017