Question / Help NVENC Help

A

Austral

New Member
So I noticed NVENC being available now, but I was wondering how this will work? I read in the changelog that you need an nvidia key, but I have no idea what that is. Running a 660 and I'm interested in getting it working.
 
A

Austral

New Member
Thanks for the link, this definitely makes a difference when streaming. What's the difference between the presets, like high quality and default?
 
Floatingthru

Floatingthru

Community Helper
It's like the x264 presets, they all have different quality and speed of encoding. There is a limit on resolution/fps/bitrate on all presets. High Quality is good up to about 1080p/60fps and around 50,000 bitrate. You just have to play around with them to find one you like. For streaming High Quality is fine. Just remember it's not as good as x264 or software encoding. You will have to give it more bitrate to hit the same quality target.
 
A

Austral

New Member
Yeah I just did a bit of testing and it looks like there's quite a bit of fuzziness in high movement scenes when using NVENC with high quality or default presets at 3500 kb bitrate. I'll try the rest of the presets and see if one helps.
 
C

Costanzathemage

New Member
BtbN said:
If you're not using 1080p60, Low Latency HQ gives the best results.
Click to expand...
So if I wanted to stream to Twitch using 720p60fps with 3500kbps bit rate, would you suggest low latency HQ then? I have a 2600k oced to 4.4ghz, 780Ti, 16GB of RAM, 57mbps down, 10mbps up.
 
A

alpinlol

Active Member
since everything would be encoded on your kepler chip theres no performance decrease... the only food the encoder needs is a bitrate
 
A

Austral

New Member
Sure there is no performance decrease but there is a visible decrease in quality. I think I'll stick with the x264 encoding for now. Maybe it'll preform better in the future but right now I don't see a reason to use it if you have a decent cpu that can handle the encoding.
 
Boildown

Boildown

Active Member
NVEnc might be better for saving to the hard drive instead of streaming, because then you can just turn up the bitrate to get a high quality saved file. With streaming you're limited in the bitrate you can push out, and that leads to poor results with low quality encoders. But hey, practically CPU and GPU-free saving to disk, that's not nothing!
 
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