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Opterons 165 & 170 < - Gibbo

2.85ghz on air, 1.45v, RAM at DDR474 (using 166 divider). Its a 408L aswell ! :)

I jan ran 2 instances of SuperPI 8m, one instance on each core. The best time on 1 core was 5 minutes and 50 second. So I kept that one and decided to run a sinlge instance of Pi on it own, to check the difference out time wise. It ran 20 seconds faster !! 5 minutes 30 second ! See the screenshot. Does this seem right ?

8m.jpg
 
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Got my 170 at 2.5Ghz which is as high as I can go as my ram doesn't like memory dividers.

Which although is not as high as I think it will go, a 25% increase in speed for nothing is excellent, looking at getting some better overclocking ram next :)
 
I guess core zero is probably tied to your os, could be wrong.

benktlottie said:
2.85ghz on air, 1.45v, RAM at DDR474 (using 166 divider). Its a 408L aswell ! :)

I jan ran 2 instances of SuperPI 8m, one instance on each core. The best time on 1 core was 5 minutes and 50 second. So I kept that one and decided to run a sinlge instance of Pi on it own, to check the difference out time wise. It ran 20 seconds faster !! 5 minutes 30 second ! See the screenshot. Does this seem right ?
Click to expand...
 
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I allready have 2 3800X2s both overclocked to 2.6 & 2.7 and have noticed one core is always faster.
I got my 165 Opty on Friday and after initial running in took it up to 2.6 today.
I did notice the difference between cores on the Opty is more than on the 3800X2s, think this may be due to the larger L2 cache.
 
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