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Bottleneck?


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#1 mikeb2817

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Posted 30 August 2011 - 06:54 AM

How can you tell a bottleneck apart from bad hardware?

I ask as i think my cpu may be bottlenecking my gpu but i know my hardware is bad anyway.

I think its bottlenecking as i am not getting performance that benchmarks suggest i should be getting, at first i thought it was the gpu was just not as good as previously said but after reading a lot online i am under the impression its a bottleneck.

For example, hwmonitor says that my card should be getting average 35 fps in bfbc2 maxed out at 1920x1200

Settings: High Quality
AA: 4x
AF: 8x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
GeForce GTX 460 35 FPS
Radeon HD 3870 X2 512MB 35 FPS

However, i play at 1366x768 and if i enable aa and af i cant even play it, i can play with everything on high so long as aa and af is not activated.

Is my cpu bottlencking my card?

Or is there something else i am not getting?

If it is any help to diagnosing my problem, i also have immense microstutter in mw2 and fallout 3


EDIT: thats the benchmark of the 512mb version of my card, i have the 1gb version of the 3870x2
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#2 MrBruce1959

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Posted 30 August 2011 - 02:37 PM

Hello Mikeb2817 and welcome to Bleepingcomputer.

Before I answer your questions, I am curious why you assume your hardware is bad, what draws you to this conclusion and what hardware do you assume is bad?

Bruce.

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#3 mikeb2817

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Posted 30 August 2011 - 03:09 PM

Not bad per say, just not as good as modern counterparts.

Im primarily concerned with my cpu, as thats what i believe is the weaker link to my system.

By bad in general i just meant outdated and redundant by todays standard, somewhat anyway.
My Ghetto System
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Intel Q6600@3.0GHZ///Arctic Cooling 13 Freezer 13///HIS HD 7850 IceQ X 2GB
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320GB Western Digital///Asus - P5W DH Deluxe mobo
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Curently playing !!!BF3!!! MW1, Crysis, WaW, BF2 and BF BC2, Crysis 2, Homefront anyone Want a game?
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#4 MrBruce1959

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Posted 30 August 2011 - 03:13 PM

Okay and the system we are speaking of would be the one you have in your signature is that correct?

Bruce.

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#5 mikeb2817

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Posted 30 August 2011 - 03:20 PM

Yeh, they are all of my parts and it is used primarily for gaming
My Ghetto System
Zalman Z11 Plus
Intel Q6600@3.0GHZ///Arctic Cooling 13 Freezer 13///HIS HD 7850 IceQ X 2GB
4GB OCZ PC-62-400///OCZ ZS 550Watts
320GB Western Digital///Asus - P5W DH Deluxe mobo
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Curently playing !!!BF3!!! MW1, Crysis, WaW, BF2 and BF BC2, Crysis 2, Homefront anyone Want a game?
Add me on Steam; SuperDuperMe, and Origin; mikeb2817

#6 MrBruce1959

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Posted 31 August 2011 - 03:30 PM

Have you tried the free version of Prime95 or 3dMark06?

I'll provide the links below, try running both programs separately and see what your ratings are from each one.

There should be support dialog on the publishers web sites and the built in help menu of each program.

Please post back your results and if you have any questions, please feel free to ask.


Prime95 http://majorgeeks.com/Prime95_d4363.html


3dMark06 http://www.futuremark.com/benchmarks/3dmark06/introduction/

Bruce.

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#7 killerx525

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Posted 31 August 2011 - 04:34 PM

Prime 95 only stresses out the processor to the max.

>Michael 
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#8 MrBruce1959

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Posted 31 August 2011 - 06:59 PM

Prime 95 only stresses out the processor to the max.

That's what he needs to do, this way he knows which is causing the bottleneck, the central processor or the Video Graphics Processor. :thumbup2:

Bruce.

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#9 dc3

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Posted 31 August 2011 - 11:33 PM

The stress-test feature in Prime95 can be configured to better test various components of the computer by changing the *fast fourier transform (FFT) size. Three pre-set configurations are available: Small FFTs and In-place FFTs, and Blend. Small and In-place modes primarily test the FPU and the caches of the CPU, whereas the Blend mode tests everything, including the memory.

By selecting Custom, the user can gain further control of the configuration. For example, by selecting 8-8 kB as the FFT size, the program stresses primarily the CPU. By selecting 2048-4096 kB and unchecking the "Run FFTs in-place" checkbox, providing the maximum amount of RAM free in the system, the program tests the memory and the chipset. If the amount of memory to use option is set too high, then the system will start using the paging file and the test will not stress the memory.


Edited to post the link to the article.

Prime95 - Wikipedia, the free encyclopedia

Edited by dc3, 31 August 2011 - 11:40 PM.

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