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Streaming while gaming with eGPU
 

Streaming while gaming with eGPU  

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(@rey_eads)
Active Member
Joined: 9 months ago
 

Hey! So my setup has been handling every task I've thrown at it very well until... now.

So I decided to try streaming again for the first time since getting my eGpu setup and I'm getting horrible frame rates both in OBS studio and in whatever game I'm playing no matter how intensive.(Overwatch, Sea of Thieves, League of legends)

Normally i can get a stable 144 fps at very high and 1440p in league, over 110 in Overwatch at 1080p, and over 90 common settings in SOT. But it's unplayable if I try streaming. On my old non-egpu rig I could play any of these games while streaming and suffer a drop of only a few frames.

I've tried the three different streaming encoders in OBS and all yield more or less the same results. (x264, AMD, QSV)

Is this just because OBS doesn't have proper support for eGpu's?

2018 13' MacBook Pro
8GB | 256GB
RX580 - Sonnet Breakaway
Working in Windows/Mac


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QWERTY36
(@qwerty36)
New Member
Joined: 8 months ago
 

I have the same issue, razer blade stealth 2018 with GTX 1080ti, very high frames when playing, but streaming anything more than overwatch tanks my frames.

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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Jyin
 Jyin
(@jyin)
Estimable Member
Joined: 2 years ago
 

Streaming is one of those things that get hit hard by the TB3 bottleneck.
You are riding that 4xPCI with outgoing data to eGPU, and back into your PC for the rendered stream.
It’s similar to (or worse than) accelerating the internal display.

If you want to use the eGPU, and stream, try it like this.

https://www.velocitymicro.com/blog/dual-pc-streaming-guide/

J

2017 iMac 5k 27inch RP580 TB3 + Vega FE/LC + Sonnet 550 + EVGA GeForce RTX 2080 Ti FTW3 ULTRA GAMING + Sonnet 550 + Mac/Win10


Rey Eads liked
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(@rey_eads)
Active Member
Joined: 9 months ago
 

Thanks for the reply!

Well, I really love OBS for its window capture and automatic switching features. With an external streaming pc I’d lose those functionalities. So I guess I’ll have to wait for Thunderbolt 4 or whatever to test those waters again. Whenever we get access to more bandwidth.

2018 13' MacBook Pro
8GB | 256GB
RX580 - Sonnet Breakaway
Working in Windows/Mac


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(@rey_eads)
Active Member
Joined: 9 months ago
 

Hey do you think it would be possible to use a capture card like say the Elgato HD60 to get around that bandwidth limitation?

So like clone the elgato with the external monitor, and then feed that back into the mac so OBS can use the feed without sending it back through TB3?

2018 13' MacBook Pro
8GB | 256GB
RX580 - Sonnet Breakaway
Working in Windows/Mac


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Jyin
 Jyin
(@jyin)
Estimable Member
Joined: 2 years ago
 
Posted by: Rey Eads

Hey do you think it would be possible to use a capture card like say the Elgato HD60 to get around that bandwidth limitation?

So like clone the elgato with the external monitor, and then feed that back into the mac so OBS can use the feed without sending it back through TB3?

I doubt that would work.

But have look here:
https://sorrowsnow77.com/dual-pc-stream-setup-obs-settings/

J

2017 iMac 5k 27inch RP580 TB3 + Vega FE/LC + Sonnet 550 + EVGA GeForce RTX 2080 Ti FTW3 ULTRA GAMING + Sonnet 550 + Mac/Win10


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(@rey_eads)
Active Member
Joined: 9 months ago
 

With a dual streaming setup I’d need a capture card anyway so I might as well order the capture card and try before I go for a streaming pc right?

2018 13' MacBook Pro
8GB | 256GB
RX580 - Sonnet Breakaway
Working in Windows/Mac


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