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7970 r9 280x crossfire bf4 performance issue

post #1 of 8
Thread Starter 
I just bought r9 280x to go with my 7970 just for bf4 . I am now debating on returning it and selling my 7970 and buying a r9 290x . I get horrible fps spikes on bf4 on some maps and some just have a low fps in total running on ultra , I get and avg of 88 fps ,min 47,highest 160. But some times it's just straight up like 50-60 avg fps... I don't know if it's my video card mix, the game itself ,or the drivers (currently the latest one ) I get a score of 22000 on 3dmark 11, any suggestions?
post #2 of 8
You sure your cards are running on the same clocks while in-game? I got drops to 80fps and below too and i'm with 2x7950@1100, i don't think it's not normal unless you complaining about frame pacing and microstuttering stuff that comes with milti-gpu, but it's much more smooth now than 6 month ago and more improvements are coming
post #3 of 8
Thread Starter 
Quote:
Originally Posted by Adglu View Post

You sure your cards are running on the same clocks while in-game? I got drops to 80fps and below too and i'm with 2x7950@1100, i don't think it's not normal unless you complaining about frame pacing and microstuttering stuff that comes with milti-gpu, but it's much more smooth now than 6 month ago and more improvements are coming
Yes they they are I had to downclock my 280x to 1075/1420 because I over clocked the 7970 slightly
post #4 of 8
if it is MP, then maybe a cpu oc will help. have you monitored your usage? disabled ULPS?

also, check this thread out . . .

http://www.overclock.net/t/1438939/low-gpu-usage-bf4-7950-crossfire/10#post_21128844
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post #5 of 8
I'm running 2 7970's with no spikes on BF4 so i believe this issue is sadly just related to you frown.gif
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post #6 of 8
Thread Starter 
Quote:
Originally Posted by rdr09 View Post

if it is MP, then maybe a cpu oc will help. have you monitored your usage? disabled ULPS?

also, check this thread out . . .

http://www.overclock.net/t/1438939/low-gpu-usage-bf4-7950-crossfire/10#post_21128844
I believe that I disabled it but my bus speed at my bottom slot is at 8x and my cpu is old to the max without going my extreme water cooling 4ghz 1.4v i7 930 2.8 ghz stock. I have noticed that that my you usage at low fps sometimes is like 30%
post #7 of 8
Quote:
Originally Posted by rusasus View Post

I believe that I disabled it but my bus speed at my bottom slot is at 8x and my cpu is old to the max without going my extreme water cooling 4ghz 1.4v i7 930 2.8 ghz stock. I have noticed that that my you usage at low fps sometimes is like 30%

I'm running at 16X and 8X and i'm doing fine so i don't think its that.
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post #8 of 8
Try setting Flip Que size in Radeon Pro to 0. Its the same thing as pre-rendered frames on nVidia Control Panel. What might be happening is your GPU's might be rendering too far ahead and that can cause some horrible spikes and also a reduction in frame rates.
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