I have a tv tuner and some DVR recordings I want to bring on a flight with me. When I used Handbrake to convert into 720p h.264, it results in ~1GB per hour of TV, and h.265 ends up at around 600MB. Cool!
But that’s all software encoding, which with my CPU takes about 40 minutes per hour of recording to encode.
I tried NVIDIA hardware encoding with my RTX 2060 and it went 5-10x faster, but the resulting h.265 file was over twice as big for the same quality.
What’s up with this? Anyone have any tips on how to improve the file size for hardware encoding while using NVIDIA hardware encode?