Question / Help Dual PC setup on i7 4790k and when I stream OBS drops FPS by half.

wapeddell

Member
So I have a dual PC setup I'm using my i7 4790k to stream and I have a lot of stuff on the scene but in preview it's at 60 FPS. Whenever I start streaming the FPS in OBS drops by half all the way down from 60 to 30 in 1080p. However, if I do 1080p medium @ 30 FPS I don't lose any FPS but the streams are always choppy.
 

BK-Morpheus

Active Member
1080p 60fps with x264 medium is too demanding for the 4790k.
Also the onboard Intel HD GPU can't keep up with the scene rendering (~40% rendering lag).
You could try 1080p 30fps very fast or 720p 60fps.
 

wapeddell

Member
1080p 60fps with x264 medium is too demanding for the 4790k.
Also the onboard Intel HD GPU can't keep up with the scene rendering (~40% rendering lag).
You could try 1080p 30fps very fast or 720p 60fps.
I tried both 1080p 30FPS = choppy game play. 720p 60FPS = lots of detail lost. Mind you I have two PC's one for just gaming and the other my workstation.
 

BK-Morpheus

Active Member
Yes, because the GPU on the streaming PC is not fast enough.
Why should your gameplay get choppy, with 1080p 30fps streaming, when you have a dual PC setup?
You can play the game with 60fps or more, while streaming with 30fps, no problem.
Maybe you talk about the viewer experience, but in my opinion the better encoding quality per bitrate is way more important than high fps for viewers.
 

wapeddell

Member
Yes, because the GPU on the streaming PC is not fast enough.
Why should your gameplay get choppy, with 1080p 30fps streaming, when you have a dual PC setup?
You can play the game with 60fps or more, while streaming with 30fps, no problem.
Maybe you talk about the viewer experience, but in my opinion the better encoding quality per bitrate is way more important than high fps for viewers.
My game isn't getting choppy I'm referring to the stream. https://www.youtube.com/watch?v=5J7K7RoEKyc 720P 60 FPS and it's doing this no drop Frames and no dips in OBS either.
 

BK-Morpheus

Active Member
From the log, I can only tell, that the Intel HD GPU on the streaming PC can't render fast enough and so does the CPU.
40% rendering lag (GPU overload) and 96% encoding lag (CPU).
From the youtube video it looks like the log is telling us....skipped frames all over the place (not just the game...the whole scene is lagging, as you can see on the choppy webcam).
You could upload a log of that 1080p 30fps test, so wen can see if both CPU and GPU are still overloaded or if it is just the GPU.
 

BK-Morpheus

Active Member
Yes, the streaming PC only has 4 cores/8threads and only Intel HD iGPU that is overloaded as well.
Even the streaming PC needs some GPU power to render the OBS scene.
 

wapeddell

Member
Yes, the streaming PC only has 4 cores/8threads and only Intel HD iGPU that is overloaded as well.
Even the streaming PC needs some GPU power to render the OBS scene.
Okay well I'm going to mess with the settings some more. I just stumbled upon this OBS Studio stats screen so that may give me some more insight. Going to rest I've been up all night fighting with this I will post more results when I wake up. Thanks for the small info.
 

BK-Morpheus

Active Member
Ah you're right about the stats window. That one is way more helpful than just the dopped frame count on the bottom of the main OBS window.
You can also keep a look on the GPU load of the streaming PC (on Windows 10 via Taskmanager or otherwise with a tool like GPU-Z).
 

wapeddell

Member
Ah you're right about the stats window. That one is way more helpful than just the dopped frame count on the bottom of the main OBS window.
You can also keep a look on the GPU load of the streaming PC (on Windows 10 via Taskmanager or otherwise with a tool like GPU-Z).
I'm using Windows 7 on the Streaming rig. I don't have a GPU in the rig I may pick up a real cheap one. I'll give you a shout out once I awake from my slumber.
 

koala

Active Member
You can (and should, in my opinion) still freely upgrade your Windows 7 to Windows 10 with the use of Microsoft's Media Creation Tool. Windows 7 is already 9 years old. In these 9 years, much optimizing was done that culminates in the current Windows 10. Windows XP was 8 years old when Windows 7 appeared, and you know what quantum leap that was, if you compare XP to 7.

It's not guaranteed that that upgrade will magically fix every problem you have, but even small improvements will help, I suppose.
 

wapeddell

Member
So quicksync seems to work a little better with fast @ 1080p @ 30 FPS I don't get bad stutters like the previous videos.
 
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