OCC has published a new review on the Patriot Viper DDR3 2000MHz 2x2GB

At 1333MHz, the Patriot Viper RAM was able to beat every other kit in its class at the PCMark Vantage tests, however the 9-9-9-24 latencies did not do the Viper RAM any justice at the 1333MHz speeds during the Sandra XII testing. Again, the Patriot Viper DDR3 at 1600MHz was able to beat the other comparison kits when it was tested using PCMark Vantage, but was unable to keep up during the Sandra testing. When the Viper Kit was overclocked to 1700MHz, however, it was able to beat out all of the other kits in every test.

Patriot Viper DDR3 2000MHz 2x2GB Review