Skill Ripjaws (x or z) VS. Corsair Vengeance vs Team Xtreem

cruch3rx1

Honorable
Sep 11, 2013
9
0
10,510
What should i buy ?

g.skill ripjaws X/Z 8gb (2 x 4gb) ddr3-1600 memory

corsair vengeance 8gb (2 x 4gb) ddr3 1600 cl9

Team Xtreem LV 2133MHz CL9 8GB Memory Kit

My PC :
i5 3470
ga-z77-d3h
hd 7970 ghz
xfx 650w
cooler master k280
.......
sorry for bad english !