Record while streaming without performance loss?

[Igneux]

I am trying to do this but still a little confused so let me ask first.
I get that if using nvenc for straming and the same encoder for recording I will get no impact on performace. But the problem is from where to save the video, I was told that saving it in the same drive that i use for everything else can impact my pc, so I guess i should use an external drive? But even then, an ssd or hdd? Does it matter?
But also, is all of this true if I record and stream different scenes?
I wanna do it in the most optimal way since my pc is often an its limit while streaming, so I dont wanna any more stress on it.

 

[koala]

Saving the video is no impact to regular disk activity, if it takes place on a SSD drive. Saving to an external drive is problematic, because there is usually no write-back cache active on external drives. Do record to an internal drive, if you want to avoid performance issues.

Streaming and recording different scenes at the same time isn't possible with vanilla OBS, you need the Source Record plugin for this. If you use nvenc as encoder for both the recording and the streaming output, it doesn't have a significantly higher impact on your machine. It should work. It should also work if your PC is near its limit. However if it is already over the limit, it will probably result in laggy recording and laggy stream. I suggest you just do some trial streams/recordings to see what will happen.

 

[Igneux]

Saving the video is no impact to regular disk activity, if it takes place on a SSD drive. Saving to an external drive is problematic, because there is usually no write-back cache active on external drives. Do record to an internal drive, if you want to avoid performance issues.

Streaming and recording different scenes at the same time isn't possible with vanilla OBS, you need the Source Record plugin for this. If you use nvenc as encoder for both the recording and the streaming output, it doesn't have a significantly higher impact on your machine. It should work. It should also work if your PC is near its limit. However if it is already over the limit, it will probably result in laggy recording and laggy stream. I suggest you just do some trial streams/recordings to see what will happen.

Oh, I do have an ssd, nice. Then i will try and see if it works fine, thank you very much.