Sunday, January 3, 2016

Mass Effect 3: Disabling V-sync

So when my graphics card was having some hiccups, I had to make do with a Radeon 6670. It worked well enough, but it couldn't handle Mass Effect 3 at a solid 60 fps @1080p, which means the game stuttered when playing it. There is no option to disable Vertical Sync in the graphics options, but it is still possible to do it. Here is how.

Special thanks to user evilsofa in this thread for the tip.

Always back up your files before altering them!

1. Find the file GamerSettings.ini. It should be located in C > Users > [username] > My Documents > BioWare > Mass Effect 3 > BIOGame > Config. Open it in Notepad.
2. At the bottom of the System Settings section, add the following lines:
UseVSync=True
SmoothFrameRate=True
MaxSmoothedFrameRate=62
3. Set UseVSync to False. This disables Vertical Sync (hello screen-tearing!). If you're still experiencing stutter, try setting SmoothFrameRate to False as well. MaxSmoothedFrameRate is an fps cap and shouldn't affect game smoothness at lower framerates.

Bonus: MaxSmoothedFrameRate is an fps cap. So if you're not after V-Sync removal, but instead want to play Mass Effect 3 at 120fps, this would be where you would change the framerate cap.

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