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RAM: Faster or with Tighter Timmings? - Page 2

post #11 of 23
No I am talking about having RAM speed greater than your FSB.
post #12 of 23
Interesting.. would like to see some screenies.
    
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post #13 of 23
I'll tell you soon. My XMS2s were running at 667 eff. at 4-4-4-12. Supposedly these one I ordered run at 900 eff. 4-4-4-8! I'll let you guys know. You reckon with enough voltage I can get em down to CL3?
post #14 of 23
Here you go ...

Slower
CPU @ 4501MHz FSB 409.2 Ratio 1:1 Mem @ 409.2 C4-4-4-5

Faster
CPU @ 4476MHz FSB 447.6 Ratio 2:3 Mem @ 671.4 C4-4-4-5

Bandwidth plays a large part in performance be it AMD or Intel and while tighter timings may help there will be a cross-over point where C3 is out run by C4 on the Intel systems as is C2 is to C2.5 on the AMD... Memory Bandwidth.

The only way to find out what works best is to try it on each ones own particular rig as the components will interact differently even if identical rigs are setup.

Find the Max of the CPU, Mem and MB and then work the options.

Quote:
Originally Posted by Chozart
Interesting.. would like to see some screenies.
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post #15 of 23
Thank you

Interesting! It indeed does seem to matter quite a bit
    
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post #16 of 23
Soooo back to what I was saying.....I think even though ddr2 does 2 commands per clock, its probably not enough to feed the 12'odd clock/cycle cpu. As I said before, ....if running your RAM faster than your FSB, was pointless...then why does it produce better test scores and faster results?

Thumper->

Quote:
There is no reason to run your RAM faster than your FSB. So the answer is, the fastest is the tightest timings you can achieve at 1:1 ratio.

Running 1066 RAM on a 300FSB system with 6-6-6-15 timings will not be better than running 600 speed RAM with 4-4-4-12 timings because the system will not be able to use anything more than 600 of the 1066 anyway.
post #17 of 23
cl3p20, i think you may be confused. Running your RAM faster than your FSB does NOT increase performance. RAM recieves data as fast as the cpu feeds it so RAM running faster than FSB would not help. Can we see some screenshots of your ram running faster than your fsb and yeilding better benchmarks?
post #18 of 23
Yes I would be glad to. I will post them later 2nite. Look at the above super Pi times as poted by others. Its not hard to see. Leave your cpu sped alone and increase your RAM speed...then tell me if your Pi time does NOT improve. I will post as many screenies as I can, w/ different tests to show this effect. I encourage others to do the same as this is a highly debated topic. Thankx
post #19 of 23
Quote:
Originally Posted by ncsa
Here you go ...

Slower
CPU @ 4501MHz FSB 409.2 Ratio 1:1 Mem @ 409.2 C4-4-4-5

Faster
CPU @ 4476MHz FSB 447.6 Ratio 2:3 Mem @ 671.4 C4-4-4-5

Bandwidth plays a large part in performance be it AMD or Intel and while tighter timings may help there will be a cross-over point where C3 is out run by C4 on the Intel systems as is C2 is to C2.5 on the AMD... Memory Bandwidth.

The only way to find out what works best is to try it on each ones own particular rig as the components will interact differently even if identical rigs are setup.

Find the Max of the CPU, Mem and MB and then work the options.
LOL i see no difference. The times are almost the same, just about .1sec difference.which i think just alone the inconsistancy of windows will cause that...
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post #20 of 23
Those times also have different cpu speeds and fsb. Which will explain the lack of differenece.
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