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Does this picture prove that my CPU is bottlenecking my GPU's in BF3 .If you have an eyefinity rig....state your cards and cpu and min frames for BF3 on caspian Boarder

post #1 of 25
Thread Starter 
Seems my rig is doing pretty decent but my CPU is maxing out on BF3 staying pretty much at 95% on all four cores. I have crossfire 2gb 6950's and am wondering if an i5 2500k and new z68/p67 board would help take some strain off of it or not. seems like it should help but why am i actually getting better performance then some running i7's and i5's. I'm getting a lot of mixed results. Seems a lot of people aren't getting as good of performance as i am. I'm running all ultra with HBAO on and FXAA on high with no MSAA and blur off with 16xAF.

my resolution is 5256x1050
crossfire 6950 cards
955be @ 3.9ghz
min fps is 30-35 on caspian
max is around 60-70 at times.

what does this tell you im not sure this is when averaging about 30fps

322
Edited by geazy - 2/5/12 at 12:36pm
post #2 of 25
Quote:
I'm running all ultra with HBAO on and FXAA on high with no MSAA and blur off with 16xAF

The 6950s are only 2GB cards, and the 2GB doesn't add up.. so either way you look at it, you still have 2GBs of vRAM, just the extra horsepower from the second card itself. At that res with your cards, I wouldn't run it any more than High, no AA, low AF, etc... all low eye candy settings.

Even the finest rigs have difficulty running BF3 eyefinity @ ultra settings with enabled eye candy.
post #3 of 25
Thread Starter 
Quote:
Originally Posted by E-Peen View Post

Quote:
I'm running all ultra with HBAO on and FXAA on high with no MSAA and blur off with 16xAF
The 6950s are only 2GB cards, and the 2GB doesn't add up.. so either way you look at it, you still have 2GBs of vRAM, just the extra horsepower from the second card itself. At that res with your cards, I wouldn't run it any more than High, no AA, low AF,

My Gameplay is smooth as hell. I just don't like that it has mins of 30fps. Adjusting the settings doesn't do anything. Fps are increase by like 5fps on all low settings compared to all ultra. FXAA and HBAO on or off don't have any increase or decrease performance. My GPUS are only slightly bottlenecked it looks like. They run Caspian Border at about 85-90 percent. Running it maxed out completely on drops my min frames by about 5fps as well.

Edited by geazy - 2/5/12 at 5:47pm
post #4 of 25

At this resolution 5256x1050 for BF3?

 

This minght worth reading Weird Eyefinity stuttering issues. Please help!
 

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post #5 of 25
Thread Starter 
Quote:
Originally Posted by Ken1649 View Post

At this resolution 5256x1050 for BF3?

This minght worth reading Weird Eyefinity stuttering issues. Please help!

 

I have no stuttering whats so ever. Actually even at 30fps the gameplay i have is silky smooth. I just have money to upgrade so i was looking at all options.
post #6 of 25
Quote:
Originally Posted by geazy View Post

I have no stuttering whats so ever. Actually even at 30fps the gameplay i have is silky smooth. I just have money to upgrade so i was looking at all options.

It takes Tri-fire 6970s to run at that res and settings. How do I know? Because I do. lol

I get about 60 fps avg on Ultra @ 5760x1080 with High PostAA and no MSAA
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post #7 of 25
Quote:
Originally Posted by m3t4lh34d View Post

It takes Tri-fire 6970s to run at that res and settings. How do I know? Because I do. lol
I get about 60 fps avg on Ultra @ 5760x1080 with High PostAA and no MSAA

My 7970 runs BF3 at 3240x1920 (5760x1080 portrait mode) at 80FPS+ with everything on High and quite a few things on ultra. It NEVER dips below 50fps. Given my card is at 1300mhz but still. It doesn't take $1000 worth of video cards to play BF3 at that resolution. It takes a little over half that tongue.gif
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post #8 of 25
Thread Starter 
Quote:
Originally Posted by wolfej View Post

My 7970 runs BF3 at 3240x1920 (5760x1080 portrait mode) at 80FPS+ with everything on High and quite a few things on ultra. It NEVER dips below 50fps. Given my card is at 1300mhz but still. It doesn't take $1000 worth of video cards to play BF3 at that resolution. It takes a little over half that tongue.gif

yeah and the only map that i ever hit 30fps on is caspian border everyother map i'm in the 50-60's except for a quick low of 45fps here and there.
post #9 of 25
Real simple answer ... if you have four cores at 95% ... there's a very good chance you're getting some CPU BN effect going on. Unfortunately, you'd need to run more tests (like, run the same test at different clocks and compare the % change in FPS to the % change in CPU clocks) in order to determine just how significant that BN is.
    
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post #10 of 25
Im in the same boat

You fps is good compare to mine and we have the same system ( almost)
I got a PH II965 , 5760X1080 and 2 6950 2gb (900/1350 shader unlock) but the MB only run them 8X/8X I got a 55-60 frame on map with a few bulding and drop to 45 in heavy building map ( new map must of the time drop fps a little more in the 50) and that with everything to LOW , no AA and no HBAO. Im at the limit of a cpu bottleneck , my cpu clock at 3.8 make my core load 100% ( bottleneck) and at 3,9 they load in the 95%.

bad news hit yesterday, my phenom II starting to age and need more vcore to hold the ghz and I cant really go up in vcore , cooling limited... look like I will be back in the bottleneck.

My plan was to sell a 6950 and get a 6990 to xfire with a 6950, but im wonder how to feed those gpu if I cant feed 2 6950. Going to intel will cost too much and looking at cpu replacement from amd nothing look good enough. I wonder is a 1090T at 4.2 + will really make a difference.
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Overclock.net › Forums › Graphics Cards › AMD/ATI › Does this picture prove that my CPU is bottlenecking my GPU's in BF3 .If you have an eyefinity rig....state your cards and cpu and min frames for BF3 on caspian Boarder