OCC has published a review on the Mushkin Radioactive 996958 PC3 12800 2X2GB Memory

If you need the extra bandwidth and are willing to sacrifice its tighter timings to achieve this, this RAM can really get up there frequency-wise. Most RAM in the 2000+ MHz range runs Cas 9 anyway, so you're really not trading too much performance to loosen up this RAM and crank up the frequency if needed. We were able to better 2000 MHz with this RAM reaching 2220 MHz with 9-10-9-27 timings, so all-in-all, a very good overclockable set of memory.

  Mushkin Radioactive 996958 PC3 12800 2X2GB Memory Review