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how bad is my cpu bottlenecking my gpu

post #1 of 6
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and will i still be bottlenecking it if i overclock to around 3.0?
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poison ivy
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post #2 of 6
If you overclock your cpu to 3ghz you shouldn't have any problems with bottlenecking.
you should really fill out your system specs more throughly, this will help use understand your situation better.
post #3 of 6
What brand is your power supply and how many amps does it supply the 12 volt rail(s)?

No matter what anyone tells you, that chip (alone) will not seriously bottleneck you. .
...Unless you start using multiple cards. Years ago (2007?) there was an article that cataloged fairly comprehensive benchmark of systems with an 8800 Ultra. The systems with the most powerful processors available (E6850, if I remember) only scored about 1 or 2 frames above a system using an Athlon X2 3800.

As long as the chip can keep up, the card will do most of the work. Those benchies that show how different processors allow different frame rates usually use low settings so that the GPU is not doing all of the work. On the higher settings the CPU makes little difference as long as it is multi-core and sufficiently fast.

Believe it or not, an 8800 Ultra is almost as powerful as a GTX260 (Just a LOT less effecient and reliable). So, chances are your chip is not going to seriously bottleneck you. However there are several other issues that might.

You might try disabling some unnecessary windows services and you might look into making sure too many applications are not starting up with Windows. Those things will cause a slower GPU to to bottleneck, where a faster one with more cache and more cores could handle more strings at once and faster.
Edited by Majestic_Lizard - 12/20/10 at 10:09pm
    
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post #4 of 6
Well theres a lot of variables involved. Some games are very cpu dependent and you will see a very large increase with a cpu upgrade, however some games are easily maxed out on older cpus. In cpu dependent games you can see up to a 50% increase going from an entry level athlonIIx4 to a lynnfield based processor. That might seem like a lot, because it is, but if you are getting playable frame rates on your resolution at acceptable graphics settings then there really is no reason to upgrade. What kinds of games do you like to play?
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post #5 of 6
Probably not as much, but truthfully, if you can you should upgrade to a Phenom II or Athlon II, either are much better than the original Phenoms.
post #6 of 6
Quote:
Originally Posted by Kevlo View Post
Probably not as much, but truthfully, if you can you should upgrade to a Phenom II or Athlon II, either are much better than the original Phenoms.
The original Agena's get a lot of flack because of the first versions (9500, 9600) that had the errata issue requiring versions of certain steppings to use a patch which effectively clocked them down. These chips were viewed by many to be a failure and really hurt AMD's reputation.

The 9550, 9650, 9750, 9850, and 9950 did not have this error and were solid performers. The 9750 and 9850 have close to the same performance as the Q6600. The 9550 and 9650 are about comparable in performance to a fast dual core chip.

The phenom II-based Athlon X4s and Phenom II's are better chips, but you can get a 9750 on eBay for $50 (if you keep your eyes pealed).
    
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