1333 at 6 6 6 18 vs 1600 7 7 6 18 which is better?

[Weltall]

It seems that 1333 is outperforming 1600 when it has tighter timings from alot of the reading I have done, What do you guys think is it better to run at 1333 with the timings 6 6 6 18 1t or 1600 7 7 6 18 1t or possibly even 1600 7 7 6 18 2t if I can't get it stable at 1t.

[Nebulous]

You'll have to test it with those timings to see what's the best for your particular setup.

[MongGrel]

Yeah is a personal thing I think a lot of the time, mines pretty new and still fighting with mine a bit myself :)

:beer:

[Evilsizer]

this is always my highly suggested, you must read this link. How memory frequency affects latency - Tighter timings vs. Higher speeds? (http://www.thetechrepository.com/showthread.php?t=160)

while this is all paper talk chipset/nb/imc plays a role. in the case of different speeds and timings, like others have said you will need to test it out. for my lowly oc i am running as near as DDR3-1333(1362) as i can with 7-7-7-20 timings. im pretty sure this ram could do DDR3-1600 8-8-8-20 but i havent tried it yet.

[Weltall]

Thats a pretty good link, generally to them it seems like you gain a very slight gain at higher frequency compared to a lower frequency at a 1 step lower CAS, but those graphs show barely better at least for what I was gonna set my timings at. Now if you can get 2 steps lower on CAS seems like you can really get some savings there.

[boucher91]

me personally i like to see and feel speed..
benches hardly tell real world speed...
i usually experiment and (feel) what works better for me....
the programs u run usually determine that....
different programs need different things and do better or worse....

[Weltall]

so I changed it and the mem benching was about the same, my efficiency went up at 1333 though so I guess thats good. But what I am able to do now at least so far is lower my NB voltage and NB CPU voltage which is making my CPU cooler which will likely allow my to overclock it more. I think in the end if the CPU being clocked higher will actually make my benches score higher and since they were right about the same at 1333 vs 1600 mem bench wise I think I am on a good track here.

[Weltall]

yeah i actually am able to overclock more at ddr 1333, did alot of reading and it seems 1600 and AM3's dont really play that nice together sure you can do it with the right voltages but seems to make more sense to lower the timings and MHz and then up your processor power. I have dropped my temps by 5 to 6C now with my pc running at a higher mhz than before at ddr1600 primarily cause I have been able to drop the voltage so far.

[BradHaskin]

Howdie, just signed up today. I've been struggling with all of the various specs on DDR3 memory. I may be totally wrong, but I think that many manufacturers give you what looks like great specs by manipulating the voltage. Look at a lot of the 1600 memory. Take the Mushkin you were talking about. The latency looks great: 7-7-6-18! WOW! But, what is the voltage? 1.9V...1.95?? There is no headroom. What would the specs be at 1.5 volts?? Your 1333 is probably rated at a much lower voltage. According to JEDEC the maximum recommended voltage for DDR3 is 1.575V. The manufacturers need to pick a number and stick to it. What is the latency and bandwidth of that Mushkin when running at 1.575V?? Right now, at least with an idiot like me, trtying to buy DDR3 memory is a real crap shoot. Apples to oranges, oranges to apricots.... All of the specs are kind of meaningless. Someone out there must be somewhat knowledgable. Can you shed a little light on this?? Will you please?? Thanks, Brad Haskin, Virginia Beach

[Evilsizer]

Howdie, just signed up today. I've been struggling with all of the various specs on DDR3 memory. I may be totally wrong, but I think that many manufacturers give you what looks like great specs by manipulating the voltage. Look at a lot of the 1600 memory. Take the Mushkin you were talking about. The latency looks great: 7-7-6-18! WOW! But, what is the voltage? 1.9V...1.95?? There is no headroom. What would the specs be at 1.5 volts?? Your 1333 is probably rated at a much lower voltage. According to JEDEC the maximum recommended voltage for DDR3 is 1.575V. The manufacturers need to pick a number and stick to it. What is the latency and bandwidth of that Mushkin when running at 1.575V?? Right now, at least with an idiot like me, trtying to buy DDR3 memory is a real crap shoot. Apples to oranges, oranges to apricots.... All of the specs are kind of meaningless. Someone out there must be somewhat knowledgable. Can you shed a little light on this?? Will you please?? Thanks, Brad Haskin, Virginia Beach
hi performance sticks dont have JDEC spec voltages. as if they did they wouldnt have those tight of timings. besides with PII or any IMC based cpu now. you should be looking at ram that is touted as for i5/i7. even though marketed for that side of the fence the ram only need 1.65v to nice timings. there is a dual channle kit at newegg for $99, DDR3-2000 9-9-9-27 or get the one with 8-8-8-24 but for $239.
http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=40000147%201052315794&Description=i5&name=4GB%20%282%20x%202GB%29&ActiveSearchResult=True

in the end though, JDEC ram is really for OEM's, ie dell,hp,etc.