Added a few more resolutions to NvcEncode tool. Resolutions above 4K are tried with H.264 codec but they are expected to not work since H.264 codec is limited to resolutions up to 4096 pixels in width or height. So the new ones apply to H.265/HEVC. They work pretty well on NVIDIA GeForce RTX 2060 SUPER:
640x360@144 2.10
640x360@260 2.16
1280x720@60 4.50
1280x720@120 5.38
1280x720@260 5.33
1920x1080@60 8.78
1920x1080@72 8.67
1920x1080@90 8.50
1920x1080@120 9.69
1920x1080@144 6.74
1920x1080@260 4.20
2560x1440@60 8.45
2560x1440@72 9.89
2560x1440@90 10.10
2560x1440@120 6.62
2560x1440@144 5.73
3840x2160@30 17.88
3840x2160@60 13.02
3840x2160@72 10.86
3840x2160@90 10.07
3840x2160@120 7.98
3840x2160@144 6.57
5120x2880@30 27.78
5120x2880@60 13.85
7680x4320@30 27.22
7680x4320@60 26.47
One interesting thing is – and it is too visible and consistent to be an occaisional fluctuation – is that per frame latency is lower for higher rate feeds. Most recent run has a great example of this effect:
3840x2160@30 17.88 3840x2160@60 13.02 3840x2160@72 10.86 3840x2160@90 10.07 3840x2160@120 7.98 3840x2160@144 6.57
I have an educated guess only and driver development guys are likely to have a good explanation. This is probably something NVIDIA can improve for those who want to have absolutely lowest encoding latencies.
Download links
Binaries:
- 64-bit: NvcEncode.exe (in .ZIP archive)
- License: This software is free to use