Need help with selecting memory for South Bridge system

[moogleslam]

Wow, memory is confusing.

I’ve more or less decided on most components of my system and it’ll be something like this:
i7-2600k
ASUS Maximus IV Extreme P67 Mobo
2 x HD 6950 in Crossfire
Crucial RealSSD C300 128GB SATA III SSD
Western Digital WD2002FAEX 2.0TB 7200RPM SATA III HDD
Corsair Professional Series AX1200 PSU (I want a beefy PSU for future proofing, and incase I decide to go with a 3-way SLI/Crossfire setup at some point)

But the memory…. I have no idea.

I think I want to go with 8GB (2 x 4GB), but after that, I’m lost. Newegg has 8GB DDR3 memory at prices ranging from $85 to $320

What do I focus on?

Speed? That goes from 1066 to 2200.
CAS Latency? That goes from 7 to 9?
Is voltage important? Is higher or lower better?

So what is most important, or do I find a balance of these things? What would be best for my setup? I’ll just be using my system for gaming, and I will be overclocking.

Thanks

 

[wiinippongamer]

That motherboard is sexy.

Memory performance scaling at aything above 1600 isn't much impressive, low latency favor gaming alot more than high frequency.

These'd be great: http://www.newegg.com/Product/Product.aspx?Item=N82E16820231401&cm_re=8gb_1600-_-20-231-401-_-Product

 

[moogleslam]

What are the differences between Ripjaw ($160), Ripjaw X ($200), and Trident + Turbulence ($200)?

They all have the same speed and timings. The only difference in specification is the Trident + Turbulence is 1.65v versus 1.6v for the other two - is Trident +Turbulence better for overclocking?

The Ripjaw X is listed as specifically for Sandy Bridge and I am getting a P67 system, but without any different specifications listed, its hard to believe that is more than a sales pitch.

Here are the three options in neweggs comparison tool:

http://www.newegg.com/Product/Productcompare.aspx?Submit=ENE&N=100007611%20600006050%20600006069%20600006156%20600006127&IsNodeId=1&bop=And&ShowDeactivatedMark=False&CompareItemList=147|20-231-380^20-231-380-TS,20-231-431^20-231-431-TS,20-231-401^20-231-401-TS

 

[wiinippongamer]

All that "i5 compatible, i7 compatible, AMD Black Edition" memory is pure marketing gimmick, as long as it's not over 1.65v and withing mobo specification it will work without a problem, Just get the one that's cheapest

 

[moogleslam]

All that "i5 compatible, i7 compatible, AMD Black Edition" memory is pure marketing gimmick, as long as it's not over 1.65v and withing mobo specification it will work without a problem, Just get the one that's cheapest

What happens if its over 1.65v? Is 1.6v better than 1.65v then?

 

[wiinippongamer]

No it's just that some chipsets have voltage limitations for the memory (at least on paper), for example p55 according to intel supports up to 1.65v memory, but many people run 1.75-1.8v memory on it just fine. Not sure about P67, but don't worry about it that .05 v won't make any difference at all , $40 more is a joke for the 0.0001% less power consumption