It's also completely misleading. Real world gains from dual channel are in the 4-7% range. Now there is no reason to lose 4% to 7% of performance but there is no huge difference.
Don't use Kingston RAM if you can get something else for the same price. They are the only company that still uses RAM requiring 1.65v to reach DDR3 1600 cas 9. Literally every other company has switched to ICs only needing 1.5v. The Kingston is fine for AMD based systems but don't use them in Intel builds.