I was pretty surprised at how easy it was to get the sticks up and running on my new Haswell test bench. I had previously tested many of the other kits I have on-hand from past reviews to get baseline numbers ready, and in most situations, the Crucial Ballistix Sport XT gave me the exact performance I expected from a 1866 MHz kit. It even managed to do better than expected in quite a few benchmarks. I've included both the stock and overclocked numbers in the same graphs for ease of comparison.
CineBench R11.529
HandBrake Encoding
PCMark 7
PCMark 8
SuperPi
WinRAR
wPrime