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Cas latency 8 or 9 for sandy bridge cpu? - Page 2

post #11 of 25
the 9 is fine for everyday stuff and gaming, but if money isn't an issue the tighter the better:D
    
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post #12 of 25
Word is that the 8GB Ripjaws X CL9 set will run at 8/8/8/24. Save your money and get these. Also the difference between CL8 and CL9 for gaming is almost nil. With the looser CL9 timings you can probably bump up the speed a bit more as well.
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post #13 of 25
Quote:
Originally Posted by BackerU;12150111 
Ah, very true. The motherboard is the main factor limiting the RAM voltage, and I suppose if you're doing video editing/converting (and/or anything along the lines of Photoshop/CAD) you DO want more RAM, with CAS latency being less important there. I'd say that, at 8GB, you should just go for the 9.

I do Photoshop/CAD on a daily basis. 4gb of memory is more than enough. Having faster memory speed is more beneficial for those programs.
post #14 of 25
One thing about the CL8 Ripjaws... They will match the ASUS color scheme on the P8P mobos really well, if that is important to you. My case has no window so it's not important. I'm going with the CL9's.
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post #15 of 25
Quote:
Originally Posted by Sheyster;12150187 
One thing about the CL8 Ripjaws... They will match the ASUS color scheme on the P8P mobos really well, if that is important to you.

thumb.gif That would definitely look sweet applaud.gif Aesthetics is always a good thing if you can see it.
post #16 of 25
I went for 9 but instead added another 50 bucks and brought a perfectly matching ram for all the slots to 16gb. i.e. 4x4 =16gb cas latency 9 voltage 1.5v and recommended by G.Skill tech support.
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231429

This came for around 200 bucks. got a good deal on newegg for 15% off.. the deal still remains.
With a higher ram.. and that kind of requirement as you mentioned.. nothing/no cas latency or tigther timings can beat the performance in any aspect. period!!
post #17 of 25
Quote:
Originally Posted by drBlahMan;12149945 
If your rig is strictly for gaming, then I agree...save your $24 and go with Cas 9 (although I would still buy the Cas 8 wink.gif). If you're doing some serious video-encoding, you will appreciate the Cas 8 memory thumb.gif

This is a quote from the Bit Tech article you referenced:
Quote:
If you're the type of person that runs dozens of applications all at once, then a higher memory frequency does help, particularly when you're running demanding software. However, our testing shows that memory rated at over 1,866MHz doesn't give much extra performance. Worse still, in some applications only 1,333MHz memory gives a performance penalty, meaning that 1,600MHz memory is fine.

If you're doing anything other than heavy multi-tasking - this goes for gamers in particular - then a 1,600MHz or 1,866MHz kit is plenty. You could opt for CL8, as we saw some advantage in the video encoding test, but we wouldn't obsess over this factor, especially if a CL9 kit is much cheaper.

Obviously this backs up what you are saying. However, if you are only doing occasional video encoding or extreme multitasking then I don't think you will notice the difference. And seeing as how the ECO RAM is $179 (CAS 8 1.35V) I doubt it is worth it compared to something like the GSkill Snipers considering they are CAS 9 at 1600 (1.5v) and can overclock easily to 1866. And even that article concludes you won't see much a difference beyond CAS 9 and 1866.
post #18 of 25
I went with 6-8-6 for my sandy bridge. It's really cheap on newegg.

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231444
post #19 of 25
Thread Starter 
My new rig just been order from newegg

i5 2500k/ asus p8p67 pro/g.skill. 8gb cas 8/ AMD 6950 1GB /750 watt biggrin.gif

Well I just pull the trigger on g.skill 8gb cas 8 latency kit total price came out $117.74 with% 15 coupon.
The other set of g.skill 8gb cas latency 9 is out of stock in newegg right now or i was about to order that one instead oh well only had to pay $22 more for cas 8 set.

Since i won't be upgrading my computer for at least three year.
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post #20 of 25
Quote:
Originally Posted by steven937595;12150141 
..., but if money isn't an issue the tighter the better:D

This comment makes me think bad thoughts biggrin.gif
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