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findal

New Member
findal submitted a new resource:

NVIDIA NvEnc Guide - Guide on how to use NvEnc with OBS for the best possible image quality

ABOUT THIS GUIDE
The objective of this guide is to help you understand how to use the NVIDIA encoder, NvEnc, in OBS. We have tried to simplify some of the concepts to make this accessible to a wider audience. If you think we can improve any part of this guide or find any issues or mistakes, please post below and we will be happy to update it.

INDEX

  1. NvEnc in OBS
    1. About NvEnc
    2. Recommended Settings
    3. Recording
  2. Additional Info on...
Read more about this resource...
 

Shuvalov

New Member
Sorry about my English. Good afternoon. I want to use two graphics cards in OBS. One video card handles the game. The second processes the stream. Both Nvidia video cards. Can I specify OBS which video card to use for streams? Nvence encoders are on both video cards and if it is simple to choose it in settings + to specify GPU of the second video card that the first all the same is loaded by 10 percent. The second video card is loaded by 35 percent, which means that the GPU of the video card processes the stream. I really have to transfer the entire load from the stream to the second video card. To the first during the stream did not experience the load. Help please.
 

Baz

New Member
The paragraph on codecs is duplicated, and also contains a typo in the second sentence ("There one used for streaming is H.264", supposed to be "The" I guess)
 

Gregory Hartley

New Member
Amazing Guide.... Thank you.. Just a little Oopsy though. You said
"RECOMMENDED SETTINGS
These are our recommended settings for OBS Studio 23.0 and up"

We are only currently on 22.0.2
 

Brinion

New Member
So, I tried these settings and I get the "overload" message. I wonder how is that possible. RTX 2060 6GB, i5 8600K OC to 4.1GHz, 8GB RAM, Upload Speed 15Mbps, Bitrate set on 6000. In-game resolution 1080p, output 1080p 60fps, FTL enabled, is it too much? I have the settings exactly like in the picture under Advanced Settings. I tried to uncheck "look-ahead" and "pshyco visual tuning" and changed the Preset to Quality, also changed from Lancoz to Bilinear. Still get the same results. I did the auto-config wizard setup to see if something changes, and it gave me 10k bitrate with base and output set to 1080p @ 60fps with encoder nvenc but i didn't tried go live with those since with the first set up failed me. I did the auto-config again with the game running in the background and it changed again to base 1080p and output 720p with software x264 encoder and bitrate around 4500 and streamed with that and i noticed the message disappeared but the gameplay was a bit "choppy". Again, how is that possible on an 8600K CPU? I also tried to lower the graphics settings to low on everything, still the same. The game in question is Vampyr. Could it be that the game is really bad optimized? I noticed another thing on the in-game fps, no matter what i had changed in the graphics settings and vsync, the fps remained locked at 60. Another thing i noticed in the task manager the gpu was loaded around 40-50%. How can it be? Don't tell me the gfx card sucks lol.
PS: Sorry for the long comment :D. Great Guide btw!
 

findal

New Member
Hi Brinion,

If you are streaming with NvEnc, the overload problem can only happen if your settings are too high and you try to do 4K streaming, or if you are maxing out the GPU. I would use the guide settings and do 2 things:
1) Turn Game Mode off in windows.
2) Put a frame cap on the game.

After that, make sure the GPU load is below 90% when the game is running (not when you are alt tabbed; some games reduce FPS when the game is in the background so it may seem as if your GPU load is OK, but the moment you go back it spikes up again). If the issue persists, I would recommend posting it in the support section of the forum with a copy of your log.
 

Brinion

New Member
the overload problem can only happen if your settings are too high and you try to do 4K streaming
By "settings too high" you mean what, exactly?

Did you read what I wrote previously or ...?
I said I followed the guide exactly as shown in here. I streamed @1080p not 4K, and it showed the overload problem. Turned Game Mode off in Win, tried with VSync ON/OFF, low settings, etc. still get the message.

Nevermind all this. Moving on. Thanks anyway.
 

DD-Indeed

New Member
Wanted to share my results with the NVENC H.264 (New) codec, when did some tests to Twitch and Youtube.

PC specs:

OS: Win 10 x64
CPU: Ryzen 5 1600 @ 3.8 GHz
RAM: 16 Gb (4 x 4) DDR4 @ 2933 MHz
GPU: GTX 1070 (slightly overclocked)
Hard Drives: 2x Samsung SSD's (250 Gb & 1 Tb) + 1 Tb external HDD (Samsung)


OBS Version: 23.1.0

Stream settings:

Encoder: NVidia NVENC H.264 (New)
Enforce Streaming Service Encoder Settings: Enabled
Rate Control: CBR
Bitrate: 8500
Keyframe Interval: 0
Preset: Max Quality
Profile: High
Look Ahead: Enabled
Psycho Visual Tuning: Enabled
GPU: 0
Max B-frames: 2






Twitch test:
https://www.twitch.tv/videos/410402448


Youtube test:
https://www.youtube.com/watch?v=9DDyqw3LWBw







It's easy to see that Twitch has superior smoothness and image quality compard to Youtube, but there's still some work to do with the new codec. So far, my impression is that the new codec tries to hide some of pixelation with blurring the pixels, which then results image getting blurred a bit. It looks much better than the old codec for sure, and needs less resources/bandwith to run butter smooth stream (at least on Twitch), but the blurring isn't going to help to hide the fact, that there is still some of that pixelation going on. Not as much as it used to be thou, I'm very impressed by this sort of progress on this.
 

almaceleste

New Member
hi there.
I have no nvenc option in my obs 23.2.1 on ubuntu 19.04 although ffmpeg -encoders displays nvenc support.
 

findal

New Member
hi there.
I have no nvenc option in my obs 23.2.1 on ubuntu 19.04 although ffmpeg -encoders displays nvenc support.
Hi almaceleste,
Would need to check a couple of things. If you still have the issue pop by the support forum or Discord and I'm sure I or a community member can help out.
 

findal

New Member
findal updated NVIDIA NvEnc Guide with a new update entry:

Windows 10, version 1903 is out

Updating the guide after the Windows 10 1903 release. For this new version of Windows, the new recommended settings are as follows:
  • Windows: Make sure you update to Windows 10 version 1903, and enable Game Mode. This version includes performance enhancements for streaming, as well as an updated Game Mode compatible with streaming.
  • GPU Utilization for 1440p and 4K streaming: When streaming higher resolutions, or using an asset that is higher resolution, if your GPU...
Read the rest of this update entry...
 

dungi

New Member
So should we turn Game Mode on now? That's confusing :) But maybe they changed something there for streamers. I need to check if I'm on 1903 and will test this out
 

DeMoN

Member
It's easy to see that Twitch has superior smoothness and image quality compard to Youtube
Since youtube sends their h.264 transcodes to the viewer, you should use 1440p for youtube, so that the viewer gets a 10 mbit video instead of just 5 mbit. (and yes thus this rule is the same for normal vod videos: Dont use 1080p for youtube. Best for youtube is 3200x1800 to get their bitrate supposed for 4k videos)
Smoothness should be exactly the same though. 60fps is fully supported by youtube.
 

findal

New Member
findal updated NVIDIA NvEnc Guide with a new update entry:

OBS 24.0.3 Admin Mode

Updated Guide with info about OBS 24.0.3 new solution for high GPU encoding. Forget about complex fine tuning. You can now run OBS in priority mode to make sure your stream runs perfectly in any situation with NVENC. Just open OBS in admin mode and that will prioritize the stream over everything, ensuring you get max FPS in game with silky smooth 60 FPS streaming.
Read the rest of this update entry...
 

vadim222222222

New Member
Что с этим делать

Я перевожу то, что было указано в ошибке:

Выход не выполнен. Подробности отображаются в журнале.
Примечание: если вы используете кодировщики
NVENC или AMD, убедитесь, что у вас установлен последний драйвер

1572641401268.png
 

stinkfly

New Member
Hi there, I've got 2 questions

  1. What determines in the Video tab, what the Base and Output resolutions are? I'm trying to get 4K, but highest I get is 1080p?
  2. It is recommend to use NVENC for streaming and x.264 for recording or vice versa if you want to offload some of the workload to the GPU?
Thanks in advance
Image 17.jpg
 
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