At first glance the Kingston kit doesn't look fantastic. If you really begin to break it down, though, and look at the graphs, you see that in the memory benchmarks the Kingston kit performs very well. The kind of kit it is and its default speed means that you really want a CPU that can handle the high BCLK to get the most out of it.
Fast memory is great, but until you couple it with a fast CPU you can't really make full use of it. CPU speed is extremely important these days, especially due to the fact that we've got such powerful video cards available.
When it came to overclocking it was surprising to see the kit get such a nice little overclock that equated to an extra 140MHz DDR which is really nothing to sneeze at.
Kingston continue to do what they do best, they bring a good quality, fast memory kit that just works. The heatsink as always is top notch quality and feels great. Performance is good, but there's no doubt that you'll want to make sure you have a decent CPU that can overclock. In saying that, you want to have a decent CPU when it comes to any of these high performance kits.
If you're looking for something that's a bit faster than 2000MHz and is of top notch quality, the HyperX kit from Kingston can't be passed. At $239.99 over at Newegg it's not a cheap kit, but if a quality 2133MHz kit for your P55 machine is what you're looking for, make sure you have a look at this Kingston one.