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Better to have a high FSB or a higher CPU Multi? - Page 2

post #11 of 18
it also depends on what chipset you have. on 680i chipset. higher multi perform slightly better than higher FSB.
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post #12 of 18
usually, a higher fsb + a lower multiplier will perform better than the inverse because the higher fsb forces the motherboard and memory to be faster. but, this is motherboard dependant due to strap changes. On some motherboards, a 390 fsb may be better than a 400 fsb because of a "strap change".
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post #13 of 18
the FSB is the workhorse of any PC. there is no blanket rule for this, but generally a high FSB will give you better overall performance.
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post #14 of 18
i think the simple answer would be to raise the FSB as high as you are comfortable with (temp and volt wise) - and then adjust the multi so cpu is stable. it definitely takes some fiddlin around to get the optimal combo of FSB RAM freq/timings and CPU speed. but as was said earlier the higher your FSB the higher your systems overall bus bandwidth.
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post #15 of 18
You guys realize that this is in AMD and there is little to no difference with HTT?
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post #16 of 18
I really think the only thing that matters is the CPU speed. Your RAM speed and Bus speeds don't account for much performance increase. Not nearly as much as CPU speed does.
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post #17 of 18
Quote:
Originally Posted by ivan0550 View Post
Ok... I do some experiments by myself... and this is what I got...

Multiplier----FSB--------Vcore-------Frequency-----CPU Score(3dmark06)
----7X--------340--------1.15v--------2.72GHZ-------1999 Points
----8X--------340--------1.15v--------2.72GHZ-------2264 Points

So in conclusion... is better a high multiplier
typo maybe?? 7 x 340 is 2380... not 2720...

So your conclusion doesn't make sense anymore, when obviously you will score less with the chip at 2.38 ghz over 2.72 ghz...
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good enough
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post #18 of 18
Quote:
Originally Posted by aaronman View Post
I really think the only thing that matters is the CPU speed. Your RAM speed and Bus speeds don't account for much performance increase. Not nearly as much as CPU speed does.
maybe if SuperPI is the only thing you do. when i compile video on my computer, the first pass only runs my processor at 50%. that's because the processor isn't getting the data fast enough to run it at full speed. half of its time isn't being used. if i had a higher FSB and memory speed, i would have a more balanced system that would better take advantage of my already fast processor.
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