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1600MHz CL8/9 vs. 1333Mhz CL7?

post #1 of 8
Thread Starter 
Which configuration is preferable with an X58 setup and why?

Quote:
1600MHz, timings: 8-8-8-* or 9-9-9-*
vs.

Quote:
1333MHz, timings: 7-7-7-*
I am finally going X58 and I'm not sure which is more important for general performance: tight timings or outright speed...
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post #2 of 8
I did several benchmarks with my system. And the higher MHz where allways better than lower frequencies but tighter timings.
So if you want some good RAM go for 1600ish@8-8-8-x. They will do much better than 1333ish.
I also read that it is common for intel systems to prefere higher frequencies over timings but not for AMD. Didn`t understand why but since i got no AMD it didn`t bother me.
Edit: This a nice Memory Performance Comparative:
http://www.bit-tech.net/hardware/mem...sandy-bridge/8
And don`t think that CL7 will close this gap!
Edited by Mr.Eiht - 5/2/11 at 3:48pm
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post #3 of 8
Higher frequency also makes a slightly easier overclock, most people shoot for a 4Ghz average overclock on x58 & 200 bclk puts the memory at 1600Mhz with the default ratio.
    
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post #4 of 8
RAM timings are just as important as frequency. However, there are usually trade off's. Typically, the higher the frequency the looser or higher the timings. The lower the frequency the tighter the timings.

There's a myth going around that with intels ix series CPUs', timings aren't as important as frequency. This is completely untrue. When I was buying the current RAM I have I did a bunch of research and found that both are important, and that tight timings increase performance on Intel just as much as they do on AMD's.

For instance 1600MHz CAS7 RAM will perform virtually identically to 1200 CAS 6. (I tried looking for the benchmarks I referenced but can't find them at the moment.)
In order to find out which timings and frequency are the best for you, you'll just have to play around with it. I've found that when I switched to this RAM, even though it runs at a lower frequency, I can run it at 5-5-5-15 timings and it is definitely a very noticeable speed boost. It even helps load games and maps faster in-game.
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post #5 of 8
All the tests i made showed other results. I got my RAM@CL7 at low frequencies compared to CL9 at higher MHz. The CL7 where ~8GB/s compare to 9GB/s with CL9.
(and 9GB/s is still low).
But what should be answered is this:
Would the 1333MHz@CL7 be better or the CL8@1600ish?
That was his question, if i got that right.
And i write it again the 1600ish RAM would be better.
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post #6 of 8
Quote:
Originally Posted by Mr.Eiht View Post
All the tests i made showed other results. I got my RAM@CL7 at low frequencies compared to CL9 at higher MHz. The CL7 where ~8GB/s compare to 9GB/s with CL9.
(and 9GB/s is still low).
But what should be answered is this:
Would the 1333MHz@CL7 be better or the CL8@1600ish?
That was his question, if i got that right.
And i write it again the 1600ish RAM would be better.
hello, I would like to know if this is traditional Germany beer from where I can buy now, I spent short time to stay Heidelberg last Christmas and I was really enjoyed beers, hot wine and everything, thx.
Attachment 208608

http://www.360buy.com/product/334840.html
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post #7 of 8
Thread Starter 
Well I just scooped a 1600Mhz 9-9-9-24 kit for my X58 board... Should be able to tighten the timings a bit.

Quote:
Originally Posted by landyzhu View Post
hello, I would like to know if this is traditional Germany beer from where I can buy now, I spent short time to stay Heidelberg last Christmas and I was really enjoyed beers, hot wine and everything, thx.
Attachment 208608

http://www.360buy.com/product/334840.html
Seriously??

Never thought to send him a PM instead of posting something completely off-topic?
Edited by MCBrown.CA - 5/3/11 at 10:00am
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post #8 of 8
oops, return to the topic, go 1600@cl8 for better OC margin
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2600K
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CPUMotherboardGraphicsRAM
2600k Giga P67 UD7 B3 MSI 6950 Unlocked and CF gskill 1600 4gbxh 4x2gb @8-11-8-2133 
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