Question / Help Switching from NVENC to x264 endcoding (Stream & local recording) - Best settings?

c0nsecro

Member
Well I was very confused to see, that the thread got 3 pages now :o . From my experiences with my old system (6 Core X5650) I can tell you, that I've got a FPS drop from ~10-15 FPS per encoding job (I've used NVENC 25MBit/6Mbit for recording/streaming), so almost ~20-30 overall. Streaming with x264 was no option, because my old CPU was at a to high load, especially with games that are using 6+ cores (Watch_Dogs 2, Battlefield 1).

With my new setup (i9-7900X) I made some streams with recording at the same time, I hope the logs will help you, maybe you find some mistakes too? So, actualy I've made no gameplays with games which use all CPU-cores, because Battlefield 1 won't start anymore since I've reinstalled windows (1-2 seconds of loading in windowed mode, then it closed without any errors/messages and I'm back in origin ... biggest fail of EA ever) and for Watch_Dogs 2 I've got no time until now. I hope to find a little bit of time next week, atm there are to much betas which I want to play D: .
 

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Thx for your advice c0nsecro, I will leave this thread and continue elsewhere but it is interesting that you too saw the performance drop using NVENC.

Its the upper-right most link that says "Wiki".
I see that....now that you mention it :)
I'm just offering you the perspective of someone who is new to the site, and wants to not only fix his problems but help other people to fix their problems too. I didn't know the wiki existed and so I didn't look for a link that says wiki. If I searched for answers to problems, I found links to this forum (that's how I got here) but I never saw the wiki before. That's why I thought a sticky would be good.
 

BK-Morpheus

Active Member
As soon, as you use NVENC, you VRAM Speed will be reduced. There is a workaround with an old version of nvidiainspector where you simply change a value, so that the video RAM will still maintain full speed, while CUDA or NVENC will be active.
However i'm not sure, if this will compensate the performance drop, as Shadowplay recordings will affect performance as well (but only slightly).
 

c0nsecro

Member
Thx for your advice c0nsecro, I will leave this thread and continue elsewhere but it is interesting that you too saw the performance drop using NVENC.

You can also stay here if you want, that keeps the thread also alive ;) .

Btw don't you think it will be normal that the FPS drops a little bit? If you encode with x264, the FPS will only drop if you are at the "limit" of the CPU, but then it drops more than 30 FPS and the usage of the CPU depends on the game you play. With NVENC the "drop" will be constant, doesn't matter which game you play and how high the gpu-load will be.
 
I've noticed it can be hard to keep attention on a thread. I hope to learn more about OBS and video encoding so I can put my IT experience (it's my job) to good use here, helping people as you guys are helping me. It's hard to tread the thin line between learning so I can help, and asking stupid questions and being annoying.

Well yes I thought that it was normal but I'm a noob to video encoding so when people told me that it is separate hardware and I should not see that performance drop, I thought that I had made a mistake.
 
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