Question / Help Streaming FPS Drop

L

Laming

New Member
Hi I'm having some issues with streaming games via Twitch using OBS.
I have a pretty good computer, and good internet so I don't see the problem.
I'm not sure why my memory is only at 3060 considering I have 16G RAM
I can play League of Legends in full very high settings at 60+ FPS constant
But when I start streaming the game, even at downscale 2.00 (960x540) on Bi-linear I get down to 30-45 FPS( 45 FPS on full medium settings)

I have my Encoding using CBR, CBR Padding, 10 Quality, 1500 Bitrate and Buffer. Audio AAC 128, with Aero Disabled.

I really hope somebody can help me out! <3 I'd like to stream with perfect quality.

System Specs Via dxdiag:

System Model: TZ68A+
Processor: Intel Core i5-2500k @3.30GHz
Memory: 3060MB RAM
Direct X: DirectX 11


Display:

NVIDIA Geforce GTX 680
Total Memory: 3269 MB
1920 x 1080 Resol @ 32bit (60 Hz)

Verizon FiOS
Speedtest.net: Ping 10: Download 56.58: Upload 34.77
Power Source: Rosewill HIVE Series HIVE-650 650W
CPU: Intel Core i5-2500K Sandy Bridge 3.3GHz
Motherboard: BIOSTAR TZ68A+ LGA 1155 Intel Z68
RAM: 2x G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) (16 Gig Total)
GPU: EVGA Superclocked, Signature 2 02G-P4-2687-KR GeForce GTX 680 2GB 256-bit GDDR5
 
dodgepong

dodgepong

Administrator
Community Helper
According to those logs, the stream seems to be performing alright (though you should change your webcam to be a global source so that it doesn't take so long to switch scenes). What is the process priority set to in your OBS Advanced settings?

You'll actually get better performance with Window capture if Aero is enabled. Aero should only be disabled if you're using Monitor capture, which I don't see you using.
 
L

Laming

New Member
Process Class: Normal
Scene Buffering: 400 ms

x264 CPU Preset: veryfast
keyframe: 2

Checked: Allow other modifiers on hotkeys
All else is unchecked.
 
L

Lain

Forum Admin
Lain
Forum Moderator
Developer
This FPS drop happens in league, I assume? Everything seems fine on OBS' end. I notice however that you have aero disabled, and don't seem to be using monitor capture. Try enabling aero (and making sure you're using the aero theme), and see if that doesn't help increase performance for you.
 
L

Laming

New Member
I enabled aero, and playing at no downscale.

I had a little play around with it in custom...

Playing Borderless on very high settings:
Game Capture- 30 FPS
Monitor Capture- 30-35 FPS

Full Screen Game Capture
Game Capture- 30-35 FPS(40-45 if no action going on)
Monitor Capture- 30-35 FPS(40-45 if no action going on)

If I disable the preview on OBS, my fps go up to 40-45.... I'm not sure what's going on, haha.
However, If I set LoL to above normal is process class, I get up to the 50-65 fps region.
 
L

Lain

Forum Admin
Lain
Forum Moderator
Developer
I would actually turn on downscale, as turning it off will encode at full resolution, which requires a ton of CPU.
 
You must log in or register to reply here.
Top