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BF4 D3D 11.0 and Mantle

Techen

Techen

Techen

Soldato
Joined
5 Feb 2012
Posts
2,650
Hey guys, Quick question.

Does D3D 11 Not support crossfire? As running in it only shows 1 GPU where is when am running mantle it shows 2 GPUs.

I don't really like mantle as I get massive low FPS spikes and it honestly ruins the game for me, I can't enjoy it with sudden dips in FPS like that.

Is there anyway to enable crossfire in D3D? Thanks.
 
TheRealDeal said:
Post your setup. Both dx and mantle support Crossfire.
Click to expand...

This, Mantle is still in BETA, GPU support on older GCN cards can be sketchy, i have experience with this and might have a fix for you if i can understand your system :)
 
Bump, Missed the replys.

No I don't run fullscreen.

When switching to mantle via BF4. It says GPUS: 2.

However, Switching to DX11 it says GPUS: 1. But there both turned on and was fine during mantle. Am I missing something or ?

I have two 290Xs.
 
Techen said:
Bump, Missed the replys.

No I don't run fullscreen.

When switching to mantle via BF4. It says GPUS: 2.

However, Switching to DX11 it says GPUS: 1. But there both turned on and was fine during mantle. Am I missing something or ?

I have two 290Xs.
Click to expand...

CF does not work in windowed mode in DX, but its been said that Mantle does.
 
Final8y said:
Well just run it in Mantle.
Click to expand...

as explained, I wont play BF4 with mantle due to the MASSIVE frame drops every 30 or less seconds. Its annoying and ruins the gameplay for me. The CPU goes off the chart, game locks up for a movement and then goes back up to 130fps. Also, Sometimes the game feels like its running at 25fps when the game says its at 100fps. I have no idea what it is but mantle for me is broken and ruins the game.
 
Final8y said:
That is a strange one.
Click to expand...

No one else claims to have problems with mantle. But the graph you get with BF4 goes off the scales and I get huge FPS drops every 30 seconds.

spikes.png
 
Techen said:
No one else claims to have problems with mantle. But the graph you get with BF4 goes off the scales and I get huge FPS drops every 30 seconds.

spikes.png
Click to expand...

That looks like your out of vRam, your BF4 overlay should be displaying your vRam usage, its not there?
 
Somethings not reading something right, it says you're running at 0.00hz and job threads is saying 3 not the 4 it should.
 
pgi947 said:
Somethings not reading something right, it says you're running at 0.00hz and job threads is saying 3 not the 4 it should.
Click to expand...

The CPU thread thing is normal. on a 4 thread CPU it should be '4 threads with 3 threads used' 25% of threads are in reserve for back ground services outside of the game, mine reads '6 with 4 in use'
 
humbug said:
The CPU thread thing is normal. on a 4 thread CPU it should be '4 threads 3 threads used' 25% of threads are in reserve for back ground services outside of the game, mine reads '6 with 4 in use'
Click to expand...

Then whats causing huge spikes in CPU and low FPS drops, With "Low fps like gameplay?"

Should I reset my OC on my CPU?
 
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