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Crossfire Far Cry 3 Issues

C

Celestion

n00b
Joined
Jan 4, 2013
Messages
33
I have been reading this forum for years but my horrible experience with crossfire and Far Cry 3 has compelled me to post. Any help or advice from you guys would be appreciated. Has anyone else here had similar experiences with Far Cry 3 and crossfire?

Crossfire works acceptably with every game I have tried except Far Cry 3.

The problem:
Only occurs in dx11 mode
Low GPU2 usage
Extreme Stuttering at any framerate
Gradual degeneration into prolonged periods of extremely low framerates (10-20fps) followed by Far Cry 3 crashing to desktop (not a system crash or driver crash).

Diagnostics/Attempted and failed solutions:
Re-seating the GPUs
Disabling all OCs and using default mobo and GPU settings ( these have never caused any problems before )
Tested each GPU individually
Reinstalling GPU drivers, the right way ( http://www.brightsideofnews.com/new...ompletely-uninstall-amd-graphics-drivers.aspx )
Tried afterburner framerate limiter


Other thoughts:

Edited out my preemptive bashing. Still kinda miss the consistency of my old SLI'd GTX 470 setup though.

Problem solved by changing D3D11MultithreadedRendering="1" to D3D11MultithreadedRendering="0" in the GamerProfile.xml file. This file can be found in "...\Documents\my games\Far Cry 3"


System info:
Asus Sabertooth x79
3960x
MSI lightning r7970 Ghz ed
Asus Reference 7970 with Accelero Xtreme 7970 cooler
Windows 8
 
Last edited:
Using latest beta drivers + CAPs I assume?

Far Cry 3 is running perfectly on my OC'd 7970s w/ Eyefinity portrait. I had issues at first, but they were due to a corrpted installer than anything hardware or driver related.
 
Well im running 3 7970s in tri-fire all at 1100/1625 and i get 100 FPS and massive stuttering, Only fix for me is go into AFTERBURNER and enable the frame limiter at 60 FPS then ENABLE IN GAME VYSNC in game and its buttery smooth, this is what used to be done in Elder Scrolls Skyrim to get that to work perfectly.
 
The stuttering is not due to crossfire or even AMD. The game stutters. This is not news around here. It stutters on all of my systems.


as been said right above me


use a frame cap and set it to 60. You can do this using afterburner. I do it with my htps with a 5870 2gb, my bedroom rig with a 480 and my other rig using a 280. They all exhibit this stuttering and are all fixed with a frame cap.
 
The stuttering also occurs on 670gtx system but to much lesser extent.

My main problem is:

Gradual degeneration into prolonged periods of extremely low framerates (10-20fps) followed by Far Cry 3 crashing to desktop

and

Low GPU2 usage

For those who have crossfire working in Far Cry 3, what does your second GPU usage hover around? In dx9 mode, the only crossfire-stable mode for me, it hovers around 50%. Most other games its 80-90%....
 
[H]ell yes! I fixed it by changing D3D11MultithreadedRendering="1" to D3D11MultithreadedRendering="0" in the GamerProfile.xml file. I also set it to read only (don't know if that was required or not). Everything is awesomely smooth now. Anyone who has FC3 crossfire problems try the setting above.

My theory regarding the origin of this problem:

I installed FC3 when I only had one 7970 so the "D3D11MultithreadedRendering" command line was configured as such (i.e ="1") and remained so after installing the second videocard. Perhaps those who installed this game with crossfire already setup and enabled could tell me what their "D3D11MultithreadedRendering" is set to?

Update:
Still more stuttery than my 670gtx living room setup but so so much better than before.
 
Last edited:
since you fixed it you should edit your op to take out all the bashing that turned out to be incorrect.


Mine was set to "0".
 
I have the exact same problem. Crossfire works horrible with this game, even using the lastest beta + CAP.

I get better framerates and a MUCH smoother experience when disabling crossfire.
 
NukeDukem said:
I have the exact same problem. Crossfire works horrible with this game, even using the lastest beta + CAP.

I get better framerates and a MUCH smoother experience when disabling crossfire.
Click to expand...

Try this if possible:

Change D3D11MultithreadedRendering="1" to D3D11MultithreadedRendering="0" in the GamerProfile.xml file. This file can be found in "...\Documents\my games\Far Cry 3"
 
FaRKle0079 said:
Using latest beta drivers + CAPs I assume?

Far Cry 3 is running perfectly on my OC'd 7970s w/ Eyefinity portrait. I had issues at first, but they were due to a corrpted installer than anything hardware or driver related.
Click to expand...

I simply CANNOT run FC3 in EyeFinity using the AMD system in my sig, no way. stutter city and laggy.
I did run it very well on a single 24" monitor, custom ultra settings, DX11 and all that jazz.
Ran fine and the GPU utilization was > 85% on both GPUs.

I could not run the game in Surround either on my SLi system, same issues. Single monitor.....no problems.:D
 
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