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TR3X6G2000C8GTF vs TR3X6G1866C7GTF hard to choose


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Hi there,

 

Looking for the best of the best for my 975EE I decided to focus on the new high speed Corsair Dominator GT family.

 

If my preference will naturally focus on the TR3X6G2000C7GTF DDR3 modules which are 2000MHz CL 7-8-7-20, unfortunately, they're not available yet, so impossible to get a hand on it.

 

Solution :

1. Continue to wait and hope these DDR3 modules will be included for sales in most webstore catalog ... Hard because I just receive my Mobo and the CPU will come within two weeks...

 

2. Focus on the 2 closest product, TR3X6G2000C8GTF or TR3X6G1866C7GTF, 2000MHz CL 8-8-8-24 for the first and 1866MHZ CL-7-8-7-20 for the second, but the choice is very hard.

 

Ok, the first one support highest frequency, but bakward they have an higher latency than the second, so which one should I take ?

 

CL8 2000Mhz or CL7 1866 Mhz, honestly for me the final results seems to be 100% similar even if the gross specs are slightly different, each module have their own advantage, higher speed at a side, lowest latency on the other ...

 

Strange things also, the GT1866 CL7 price is higher than the GT2000 CL8 memory kit, the difference is about 50 euros which is very high, is there any mistake or this is simply because the GT1866 CL7 are better than the GT2000 CL8 ?

 

So, help me to take the best one.

Thanks

Marilith

 

PS, please note that it should be also possible that i will extend the memory up to 12Gb through a second 6Gb kit I will order later.

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PS, please note that it should be also possible that i will extend the memory up to 12Gb through a second 6Gb kit I will order later.
They're only guaranteed at those specs with one set and not two, as they don't test them that way.
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Yeah, i know that going from 6Gb to 12Gb may brings severall timing issue but I think this can be compensed if we slightly decrease the speed of the DDR3.

 

Example making 2 6Gb kit of DDR3 2000 8-8-8-24 running at 1866 8-8-8-24 ?

 

True or not ?

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Not all Elpida Hyper ICs can handle CAS7 at >1866Mhz and be within rated cpu vtt/vdimm 1.65v. Probably less than the number of Elpida Hyper ICs which can do CAS8 @2000mhz. So binning/testing for 7-8-7-20 probably takes more time and $$$ at Corsair end to make modules for 1866-2000Mhz 7-8-7-20. Hence the higher price.

 

With that said, if you aim is to get maximum mem frequency at 7-8-7-20, then 1866Mhz 7-8-7-20 kit would be better than 2000mhz 8-8-8-24 kit. As you will have more chance of 1866mhz 7-8-7-20 kit doing >1866mhz 7-8-7-20 (with maybe more than rated 1.65v) than a 2000mhz 8-8-8-24 rated kit doing 7-8-7-20 at >1866-2000mhz (cause if that kit could do it it would be rated 2000mhz 7-8-7-20 in the first place :) )

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