Question / Help OBS FPS drop

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Clay G Clement

Member
Hi all, for a while now I have noticed when I recorded at 60fps, or even 30 I get frame drop happening. I confirmed it with the new version of OBS since it has a built in FPS showing on the bottom right. So mainly I have been sticking to 30fps, due to it not really happening nearly as much. I have tried setting the process priority from idle to high and nothing seems to help. I am using hardware acceleration to stream, or do high quality video recordings so it isn't my processor being bogged down (Nor my graphics card, I will explain below). Even when not recording the FPS has the drop issue, and as for setup I am using a PowerColor R9 390 PCS+ for main graphics, for streaming I am using my old NVIDIA 660ti, and for high quality recording I am using Quicksync at speed setting and CQP around 10. I have tried no preview as well but the drop still happens. Anyone else having this problem? I have also tested streaming at 30fps and using Bandicam to record at 60fps on quicksync with 0 issues at all in frame rate. I will list my general specs below and a video on it.


Processor: i7 3770k at 4ghz
RAM: 16gb DDR3 2133mhz
Graphics: PowerColor R9 390
Recording on: NVIDIA 660ti (NVENC), or Quicksync
Sound Card: Turtle Beach z7 and Sound Blaster Recon3D
 
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Harold

Harold

Active Member
Really weird video card layout that probably isn't helping matters because of the reduced pci-e lanes per card.

11:45:20.188: ┣render_displays: min=0.001 ms, median=1.246 ms, max=430.717 ms, 99th percentile=46.31 ms

Especially with this.

Remove the 660ti completely from the system and switch obs' encoder to software low cpu use or one of the hardware encoders.
 
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Clay G Clement

Member
Did some recording after removing the card. I ended up with frame drops again, but then I minimized to the system tray the battle.net launcher and immediatly my FPS picked up. I might try reinstalling the NVIDIA card, just to verify if that was the issue as well. But it was odd seeing the battle.net launcher causing as massive hit with it being on the screen.
 
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Clay G Clement

Member
Thank you for the help Harold. Apparently it was both of them. I am surprised the 660ti was causing some issues. Do you think the card itself is going bad? Or just a bad combo with the AMD card?
 
Harold

Harold

Active Member
You're cutting your available PCI-E lanes for your main card in half by having the second card installed. It's probably mostly to do with that, given how much OBS actually uses the GPU normally.
 
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