Select one :)

Solution
The G.Skill Sniper is a tad better than the G.Skill Ripjaws X in my opinion. Has better overclocking room and a bit nicer when messing with timings. The Ripjaws X is pretty good in LGA 1155 sockets though.

The third option is not good. Best to buy RAM tested to run in dual channel.

The last two options are more expensive.
The G.Skill Sniper is a tad better than the G.Skill Ripjaws X in my opinion. Has better overclocking room and a bit nicer when messing with timings. The Ripjaws X is pretty good in LGA 1155 sockets though.

The third option is not good. Best to buy RAM tested to run in dual channel.

The last two options are more expensive.
 
Solution