edit: Ok I noticed the mhz difference in the compariosn. The top computer running at 3.36 is faster. Memory speed as I tried to state does not give the performance difference cpu speed does.
Lower timing numbers = faster
So higher speed and lower latencie settings will = faster
Usually the timings would be the other way around, thats how it is with my ocz ram
I can run cas 7 at 1333 and below
To run 1600 I need to run 9-9-9-30 : You can use everest memory and cache benchmark, alot of test sites do.
Realistically you may not feel the differences. But its all subjective http://www.legitreviews.com/article/1188/3/
different memory latencies 1600mhz ram