NVenc presets slider contains "default" on the rightmost part next to "slow" and "high quality" on the leftmost side next to "high performance".
- Is it sorted left to right to be conversion to quality accordingly for each option. In other words does "default" imply the slowest speed but the highest quality, while "high quality" imply the fastest but the worst quality?
the sliders seems to be all over the place.
NVenc presets slider.
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Re: NVenc presets slider.
That's Nvidia for you. The presets are black boxes to us. Slow is not necessarily any better or even any different to fast. Default is probably medium or similar but nothing defines this.
Not a lot we can do about it I'm afraid. It's not documented anywhere as far as I'm aware and the encoder gives inconsistent results in tests.
Not a lot we can do about it I'm afraid. It's not documented anywhere as far as I'm aware and the encoder gives inconsistent results in tests.
Re: NVenc presets slider.
Mediacoder's NVenc isn't working for me (or, because it allows incorrect combos of options for some reason - making it not working at all, when some wrong option is selected somewhere); Mediacoder's CUDA produces eye-popping awful quality and the "constant bitrate" isn't actually treated like a constant, but like a "max" instead.
Handbrake's NVenc produces the quality at almost the level of the fastest x264 for the same bitrate, while being much faster, which is nice, but to be useful for the long-term things I'm just trying to squeeze more quality out of it for the constant bitrate, idk if there's a better preset for NVenc, than its "slow" preset.
Handbrake's NVenc produces the quality at almost the level of the fastest x264 for the same bitrate, while being much faster, which is nice, but to be useful for the long-term things I'm just trying to squeeze more quality out of it for the constant bitrate, idk if there's a better preset for NVenc, than its "slow" preset.
Re: NVenc presets slider.
can I not nvenc encode H265 on a Kepler gpu?
Re: NVenc presets slider.
No, as the Nvidia encoder support matrix shows you need at least Maxwell 2nd gen for even the most basic h.265 encoding support (2 generations newer than Kepler) and even then it's not very useful. Pascal/Volta NVEnc adds more variants but is still not very good.
When people are praising the NVEnc encoder they're talking about the latest Turing graphics cards (16xx/20xx) since the big uplift came with the Turing NVenc. Note that the smallest Turing cards (1650) isn't included, it still has the much inferior Volta encoder.
https://developer.nvidia.com/video-enco ... ort-matrix