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Future proof ddr3


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I want to buy 16GB and I would like to know which kits from Corsair are a bit future proof to ve used in Ivy Bridge and Bulldozer and maybe future release with DDR3.



CMX8GX3M2A2000C9 XMS3 2200Mhz 1.65V

I'm very tempted by this one, but I read on different forums that memory which is rated 1.65 can't be installed with sandy bridge. It should be rated 1.5V.



CMZ8GX3M2A1866C9 or CMZ8GX3M2A1866C9R (basically are the same, only the heat spreader color changes right ?) Vengeance 1866Mhz 1.5V

This is the second option, if the XMS from above are not compatible with sandy bridge at all, and of course not so future proof.



I saw that Vengeance 4GB module 1.5V is not available at 2000Mhz.

Which is the speedier module 4GB rated 1.5V from Corsair ?



New entry for ram choice will be:



Vengeance White 1.35V is it worth this kit which is 1600 but 1.35V instead of 1866 but 1.5V ? Is more future proof than 1.5V ?



Since I don't do overclocking I can buy also 1600Mhz 1.5V right ? But if there will appear Ivy Bridge 2 which by default CPU will run at 1866 (as Nehalem runs at 1333 so RAM is good 1333 to be synchronous.) the ram will be needed to be 1866 to run better, and not 1600 to slow down the cpu and the system.

Here I might be wrong, since I'm thinking how it was in the past, bus speed of the cpu to be run at the same speed with the ram.

In modern cpu how is this cpu bus scaled with memory ?



Related to #4. Now I have i7 860 and I can run the ram at 1333 or 1600, so no matter which speed I run there is no more synchronous speed as 1333 ? Running at 1600 I just get better results overall ?

This also will apply at future cpu, for example there is no more default ram speed, but instead cpu will support several speed like 1600, 1866 and 2000 and running at 2000 it's same thing as 1600 but of course with better results overall system ?


7. A bit off-topic

How much future proof I will be anyway, with DDR4 right at the corner ?



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  • Corsair Employees
And your best chance at FUTURE Proof memory would be to go with Vengeance modules. At this time we do not have any information on these new chipsets that we can share and they may change before they reach full production. So sorry but we will have to wait till they are officially released before we can suggest memory for them.
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So I will go with

1 .Vengeance 8GB kit 1866Mhz 1.5V, I was looking also at

2. Vengeance LP White 1.35V 1600Mhz or

3. Vengeance 1600Mhz simple 1.5V ? (It's the cheapest but I'm thinking that 1866 kit can be used at a later time than 1600)


Which one of those 3 kits ?


Thanks again.



A competitor modules which are also rated at 1.35 is JEDEC rated at 1.5, Vengeance LP white which is rated also 1.35, is also JEDEC 1.5 or pure 1.35 ?

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