RAM speeds whats better?

I'm getting a 2600k that I plan on overclocking on either a Asus P67 Deluxe or Pro most likely Pro I don't really see any benefit with Deluxe unless someone can explain what difference 16+2 vs 12+2 of DIGI+ VRM really means.

Anyway what should I get for ram? I'm liking G.Skill Ripjaws and they have 3 versions of it I can find

cas latency 9; timing 9-9-9-24 @ 1866
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231433&cm_re=%22ripjaws_x%22-_-20-231-433-_-Product

or

cas latency 8; timing 8-8-8-24 @ 1600
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231400&cm_re=g.skill_ripjaws_series_8gb_%282_x_4gb%29_240-pin_ddr3-_-20-231-400-_-Product

or

cas latency 9; timing 9-10-9-28 @ 2000
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231407&cm_re=g.skill_ripjaws_series_8gb_%282_x_4gb%29_240-pin_ddr3-_-20-231-407-_-Product

Someone wanna give me a crash course on RAM all I know is don't take ram over 1.65v, lower timings is better and assuming that 2000 is better then 1600 but how does that really factor in if timings increase?

Also is there any better options for RAM that I might be missing? I looked at Dominator but it seemed to have higher voltage and timings compared to Ripjaw atleast with 2x 4gig sticks.
2 answers Last reply
More about speeds whats better
  1. Vote for 2nd one. Memory above 1600 isn't utilized unless you overclock heavily.
  2. Here is a nice article on Memory for the SB (thanks to jaquith who pointed it out to me :) ): http://www.bit-tech.net/hardware/memory/2011/01/11/the-best-memory-for-sandy-bridge/1
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