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EVGA P55 FTW - which of these RAMs to choose??


Sharkmanbmw

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Hi all :)

 

I have an EVGA P55 FTW (Model E-657) with an i7-860 in a Corsair Obsidian 800D.

Presently running Dominator GT 1600, but only 4gb (7-7-7-20)

PC is used for everyday computing needs, no major gaming or photoshop...

 

I want to upgrade to 8gb of RAM, I am very happy with the Dominator GT I have, but want 8gb. I considered buying another set of the one I have, but can't find them. (would that even work if they aren't matched?)

 

I was always told, the lower the latency the better, but most now are C9, is that considered 'low'? I bought the Dom GTs I have because they were C7, 7-7-7-20.

 

So, I have selected the following models as options, I would appreciate if someone could advise which is best - and why :)

 

CMZ8GX3M2A1600C8 Vengeance 1600 (8-8-8-24)

http://www.corsair.com/vengeance-8gb-dual-channel-ddr3-memory-kit-cmz8gx3m2a1600c8.html

 

CMZ8GX3M2A1600C7R Vengeance 1600 (7-8-7-20)

http://www.corsair.com/vengeance-8gb-dual-channel-ddr3-memory-kit-cmz8gx3m2a1600c7r.html

 

CMZ8GX3M2A1866C9 Vengeance 1866 (9-10-9-27)

http://www.corsair.com/vengeance-8gb-dual-channel-ddr3-memory-kit-cmz8gx3m2a1866c9.html

 

CMT8GX3M2A1866C9 - DOMINATOR GT 1866 (9-10-9-27)

http://www.newegg.ca/Product/Product.aspx?Item=N82E16820233183

(not found on Corsair site anymore)

 

I don't care about the price, they are all pretty similar, ($85-150), what I want is to understand which is best & why... is the GT or Vengeance at 1866, but slower latency speeds, better than a 1600 with lower latency?!

 

THANKS for the input :)

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Any of those modules will work with that MB and CPU, but how well the CPU will over clock will be the main question as it only supports DDR1333 officially. However, most if not all of the I860's I have seen have been able to run DDR1600 memory with out a problem. So its really up to you, do you want to over clock, and how much is in your budget?
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Thanks Ram Guy :)

I will be happy with a mediocre OC of 3.5.

Based on what you said, the CMZ8GX3M2A1600C7R Vengeance 1600 (7-8-7-20) are probably the way to go.

Is there a simple explanation for the difference between C7 & C9? How much actual difference will it make?

Budget is up to $250 - which is about what I paid for 4gb of my Dominator GT 1600 7-7-7-20 last year lol

They run at 1600 NO problem :) I wish I had bought 2 packs. Any left?

It is the only upgrade that will be done this year, so budget is very flexible ;)

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Unless you are runing benchmarks to squeeze every last drop of performance out of your PC , you will not notice the difference between C7 and C9 parts. The C7's will be slightly faster.

Budget is up to $250 - which is about what I paid for 4gb of my Dominator GT 1600 7-7-7-20 last year lol

They run at 1600 NO problem :) I wish I had bought 2 packs. Any left?

Memory with the new I series cpus and the newer AMD chips with the memory controllers on the CPU are really picky when it comes to RAM. Make sure you purchase ONE kit that will meet your needs right off the bat. Using two non-tested packages of the same exact RAM, can actually be incompatible with each other.

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