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Odd Question reguarding FSB and memory multiplier

post #1 of 3
Thread Starter 
im going to make my question as simple as possible. But first i must explain where this idea has popped into my head.

ok lets start with a cpu speed.

4.0GHz.

and a memory speed.

800MHz

and 2 different ways to get there.

400x10 with a memory ratio of 1:1 FSB:MEM

500x8 with a memroy ratio of 5:4 FSB:MEM

my question being, even at the same cpu speed and memory speed, even with having the FSB pumped so high, would such a memory bottleneck bring down overall performance to the same level?
post #2 of 3
You usually want to keep the ratio 1:1 at best of possible. Also a higher FSB isnt always better, all youre doing is throwing your ratio out of whack and putting more strain on your motherboard.
Do the tests and find out yourself, thats the joy.
ragequit
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q9550 4ghz @ 1.25v Asus Max 2 formula 8800gtx 610/1ghz OCZ LV blade 1:1 950mhz 
Hard DriveOptical DriveOSMonitor
7200.10 250gb dvd leetlinucks 24" Westy 
KeyboardPowerCaseMouse
G15 750w Toughpower Lian li pc-65 Copperhead 
Mouse Pad
Thermtaltake? 
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ragequit
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q9550 4ghz @ 1.25v Asus Max 2 formula 8800gtx 610/1ghz OCZ LV blade 1:1 950mhz 
Hard DriveOptical DriveOSMonitor
7200.10 250gb dvd leetlinucks 24" Westy 
KeyboardPowerCaseMouse
G15 750w Toughpower Lian li pc-65 Copperhead 
Mouse Pad
Thermtaltake? 
  hide details  
Reply
post #3 of 3
Thread Starter 
here are the tests i completed:

500x6 5:4:
FAILED BOOT (5:4 unstable over 400FSB) cannot use with set control.

400x6.5 1:1:
Arithmatic: Dhrystone - 25012MIPS, Whetstone - 19839Mflops
Bandwidth: Integer - 6.43 GB/s, Float - 6.39 GB/s

333x9 4:5:
Arithmatic: Dhrystone - 25002MIPS, Whetstone - 20271Mflops
Bandwidth: Integer - 6.12 GB/s, Float - 6.1 GB/s
Edited by Xinoxide - 5/26/08 at 8:41pm
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