Question / Help PC-Setup for streaming with 2 Monitors + Videocamera(s) + Ableton

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M1notaur

New Member
Hey, guys.

I'm currently about to buy a PC for streaming and wonder how much performance I need. My plan is to set up 2 Monitors - 1 for gaming with 120Hz or higher (recent games at high quality) and one for Ableton and chatting, surfing and stuff with 60Hz which is not seen on the stream. Plus 1 or 2 Videocameras.
Can a PC with the following specifications handle that including to stream via OBS at 1080p, with a decent amount of FPS? Or do you recommend using a second computer just for streaming?

Core i7-4790K, 4x 4.0 Ghz
16 GB DDR3 RAM
2000 GB HDD/120 GB SSD
3072 MB NVIDIA GTX 780 Ti
Gigabyte Z97P-D3

Or is it necessary to go for a SLI-Setup or a higher amount of RAM?

Thanks a bunch for your advice!


Kind regards,
Tim
 
Q

qhgf

Member
Your over should do just fine, streaming is mainly a processor intensive task. And assuming you plan on using H264 for encoding/compression it will have a larger hit on your CPU vs gpu. Which is good because most games hit your gpu more than your CPU, with the right presets, and quality you shouldn't have any problems.

My personal recommendation is that you stream in 720p as opposed to 1080p, because unless your viewers watch on a UHD monitor or fullscreen your video, the extra pixels that 1080 has are really dropped/downscaled out and make no difference. With 720 using fewer pixels, you can compress more than 1080 and will usually have an increase in quality.
 
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M1notaur

New Member
As H264 is supposed to give better visual quality than QuickSync - would I profit a lot from taking a 6-core CPU instead, like the Core i7-5930K @ 3.5 Ghz?
 
Q

qhgf

Member
Yes, because the encoding and compression is multi-core/multi-thread process, an extra two cores is a big benefit, I myself have a 3930k and can run medium preset on 720 without any problems whatsoever. With the performance boost the new x99 processors have, you might be able to get even more depending on your settings.

If the extra cost is worth it is up for you to decide, all I know is that I'm probably one of the few people that stream with a medium preset, but I had to pay $200 more for that benefit
 
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M1notaur

New Member
Could you maybe explain me what the exact difference and ad-/disadvantage between fast and slow CPU-Presets is?
 
M

M1notaur

New Member
One last question popped up: Is there any benefit when having a SLI-Setup (2x GTX 770 reference design) for the performance while streaming/gaming - or should I rather invest in a better Single-GPU?
 
Q

qhgf

Member
Adding an extra GPU will really only benefit your game, OBS can only use one GPU at a time, so base it off of game performance and pretty much ignore the fact that you are streaming or recording.
 
Videophile

Videophile

Elgato
Tim Beyer said:
One last question popped up: Is there any benefit when having a SLI-Setup (2x GTX 770 reference design) for the performance while streaming/gaming - or should I rather invest in a better Single-GPU?
Click to expand...
SLI/Crossfire can cause issues with OBS. I recommend a powerful single GPU. Look into the Nvidia 980 which will be announced later today.
 
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