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Tighter timings or higher frequency?

Poll Results: Tighter timings or higher frequency for better performance?

 
  • 80% (8)
    Tighter Timings
  • 20% (2)
    Higher Frequency
10 Total Votes  
post #1 of 26
Thread Starter 
Hello folks!
Which will get me better performance all-around- higher frequency or tighter timings?
See my CPU-Z screenies:

Tighter Timings:
392

Higher Frequency:
392
glaDOS
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glaDOS
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post #2 of 26
http://www.overclock.net/t/98377/info-tight-timings-vs-high-clock-frequencies-which-is-better
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post #3 of 26
Thread Starter 
I'll test now and see what happens in comparison to my old scores.
I noticed that my FSB:DRAM ratio is lower now, (3:10 vs 3:8) is this important?
glaDOS
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post #4 of 26
Your FSB:DRAM is your RAM divider. IE, what ratio your RAM speed is compared to your FSB speed.
2 OP pls nerf
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2 OP pls nerf
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post #5 of 26
Neither will make any tangible improvement in system performance with DDR3 RAM unless it's on a Llano APU, then frequency is best. Just use the best stable CPU OC and call it a day unless you're into pain and frustration. wink.gif
post #6 of 26
Quote:
Originally Posted by haazenpfeffer View Post

Hello folks!
Which will get me better performance all-around- higher frequency or tighter timings?
See my CPU-Z screenies:
Tighter Timings:
392
Higher Frequency:
392

If you must know, CAS 9 at DDR3-1816 is faster provided you keep all sub-timings as tight as possible:

Column access with 4 clock burst return time (no delays added for IO or skew) around 14.31ns for CAS 9 DDR3-1816 versus 15.06ns at CAS 7 DDR3-1460. That is assuming of course that sub-timings are not slackened to the point of being slower at the higher frequency for any subsequent read access to another bank, rank or DIMM.

-Raja
Edited by Raja@ASUS - 1/10/12 at 12:13am
post #7 of 26
In reality,something around 850(1700MHz) with a CL of 7-9-8-23-30 is probably going to be optimal.Of course your voltages and type of IC's all affect the outcomes.
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post #8 of 26
Thread Starter 
Hmm. It would appear that both of my previous suggestions of 7-7-7-20-27 @ 1460mhz AND 9-9-9-24-32 @ 1830mhz could NOT run without random, occassionaly BSODs.
However, after 20+ hours on memtest, it would appear that the following is the PROPER settings for this particular RAM with this motherboard, at these settings:
392

The timings are looser than before, but the 7-7-7-20-27 settings before also did not work. I might try this weekend to see what I can get with slightly lower frequencies,
but do you all think it is really worth it? Or should I just keep it how it is, stable and working quite speedily...

Thanks for your help, it's certainly both exciting and aggravating running tens of tests and changing single numbers in the BIOS, praying for a good result biggrin.gif
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glaDOS
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post #9 of 26

Use Maxxmem and test the bandwidth/latency results yourself.

FSB:DRAM is insignificant on AM3 platform.

post #10 of 26
Thread Starter 
I'll run maxxmem this weekend if I have time.
Will it help me rule out any BSODs? I noticed that Memtest doesn't always catch errors, even after running for hours.
Then, it never fails that I'm playing some game and it goes to a BSOD!
My system is so stable now, I almost don't want to mess with it.
glaDOS
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