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Do i have a GPU bottleneck?

post #1 of 18
Thread Starter 
I'm currently running a PhenomIIX2 550BE, unlocked to 4 cores @ 3.8Ghz.
4gb Ripjaws 6-7-7-20-1t @ 1470mhz. HD5850@stock.

I run GTA4, COD Black Ops, Assasins Creed Brotherhood, Mostly the latest games @ 1900x1200. However, lots of these games tend to drop in fps to 30-40, whilst i prefer having them at 60 constantly. I play all of them with medium settings because High will simply drop me below 25 which is unacceptable to me.
Now i wonder, what is the bottleneck, My guess would be the GFX card?
If that's the case, How would adding another 5850 increase FPS in game?
Also, i read running crossfire would result in the top card getting hotter then the bottom, how come?

Thanks!
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post #2 of 18
I would just get a new graphic card if I were you, scaling for 5850 cf is mediocre. But if you do end up cfing the to card gets hotter because the bottom card can block the air flow for the top card
    
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post #3 of 18
Your CPU will bottleneck 5850's in crossfire. Your current system is not bottlenecked at all.
GTA4 is retarded with FPS and basically it decides how well it will run on your system, AC:B is very poorly ported to the PC. As for Black Ops, I don't know. Maybe try re-installing your drivers?
Boot into safemode and sweep all ATI drivers with driversweeper then boot back into Windows normally and install the latest drivers.

Don't crossfire, no point.
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post #4 of 18
Thread Starter 
Thanks for the head up.
I will not Xfire then. The solution to the top card getting hotter was kind of simple but i didn't think of that tbh.
Are there any topics on benchmark scores? I'd like to compare my system to other systems that are about equal to mine so i can tell if it's really that crap or not
Thanks once more~!
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post #5 of 18
Quote:
Originally Posted by unseen0 View Post
I'm currently running a PhenomIIX2 550BE, unlocked to 4 cores @ 3.8Ghz.
4gb Ripjaws 6-7-7-20-1t @ 1470mhz. HD5850@stock.

I run GTA4, COD Black Ops, Assasins Creed Brotherhood, Mostly the latest games @ 1900x1200. However, lots of these games tend to drop in fps to 30-40, whilst i prefer having them at 60 constantly. I play all of them with medium settings because High will simply drop me below 25 which is unacceptable to me.
Now i wonder, what is the bottleneck, My guess would be the GFX card?
If that's the case, How would adding another 5850 increase FPS in game?
Also, i read running crossfire would result in the top card getting hotter then the bottom, how come?

Thanks!
I would say ur cpu is bottlenecking ur gpu but that's just my opinion.

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post #6 of 18
Sorry to spoil the AMD party.
But for the price/performance to take away that bottleneck, get a 2500K.
post #7 of 18
Well I can easily just lower my 5870 to 5850 clocks and then you could compare with:
Heaven 2.5: http://www.techpowerup.com/downloads...hmark_2.5.html
Gflops with Intel Burn test: http://majorgeeks.com/IntelBurnTest_d5987.html
Any other benchmarks you would care to run I could help in providing a rough comparison

Note: The extra shaders in my 5870, even when clocked at 5850 speeds, might provide a few fps gain here and there.


The CPU is not bottlenecking the GPU. Anyone who says it is wrong.
Quad-core 3.8Ghz would only bottleneck CFX5850's.
I had 5870's in crossfire and I saw ~90% scaling @4Ghz.

Even though, if you do have the $$$ it would be a good idea to get a P67/2500K
Edited by Alex132 - 4/7/11 at 12:58pm
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post #8 of 18
Quote:
Originally Posted by thealex132 View Post
Your CPU will bottleneck 5850's in crossfire. Your current system is not bottlenecked at all.
GTA4 is retarded with FPS and basically it decides how well it will run on your system, AC:B is very poorly ported to the PC. As for Black Ops, I don't know. Maybe try re-installing your drivers?
Boot into safemode and sweep all ATI drivers with driversweeper then boot back into Windows normally and install the latest drivers.

Don't crossfire, no point.
No! No! No! driver sweeper is ati kryptonite!
Seriously though, I'm pretty sure you're just supposed uninstall the old first.
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post #9 of 18
Thread Starter 
Quote:
Originally Posted by 8-Ball View Post
Sorry to spoil the AMD party.
But for the price/performance to take away that bottleneck, get a 2500K.
I have to admit i tought about that.
Intel has been having the upperhand on AMD since the Core2duo's came out.
Ever since the I7's the gap got bigger and bigger. However, comparing my CPU to the ones AMD has to offer atm, i think a quad core@3,8 should be enough to play games like GTA4 without a sweat. It's an old game by now, the hardware should easily be able to pull this off.

Things aren't like they used to be, In the old day when u got your Geforce 4 upgrade added to ur Pentium 4 2.8ghz, u would run games for 3 years straight @60fps. However, those were the golden 1280x768 days.. :'(

I will wait for AMD's bulldozers to show up and see how they fair against intel.
If they can't keep up, i'm gonna have to let AMD go for atleast one round.
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post #10 of 18
Thread Starter 
Quote:
Originally Posted by thealex132 View Post
Well I can easily just lower my 5870 to 5850 clocks and then you could compare with:
Heaven 2.5: http://www.techpowerup.com/downloads...hmark_2.5.html
Gflops with Intel Burn test: http://majorgeeks.com/IntelBurnTest_d5987.html
Any other benchmarks you would care to run I could help in providing a rough comparison

Note: The extra shaders in my 5870, even when clocked at 5850 speeds, might provide a few fps gain here and there.


The CPU is not bottlenecking the GPU. Anyone who says it is wrong.
Quad-core 3.8Ghz would only bottleneck CFX5850's.
I had 5870's in crossfire and I saw ~90% scaling @4Ghz.

Even though, if you do have the $$$ it would be a good idea to get a P67/2500K
Thanks for the links, i will compare and post here Awesome !
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