The following graph compares the total performance rating of the NAS with the performance rating of other units. The comparison is pretty straight forward: the tested unit is shown as 100% and every other unit's performance is relative to it. Please note that we only measure raw performance in the graph below. We do not include available features, or the functionality of each unit.
For most of you, the following graph will be the most interesting since it shows the performance per dollar of the NAS you want to buy. We looked up the current USD price of each NAS on the popular online shop Newegg and used it with all relative performance numbers to calculate the Performance per Dollar Index. In case Newegg didn't stock a specific unit, we searched for it at other popular online shops (Tigerdirect, Amazon) and, finally, if the unit was not sold in the U.S., we searched popular EU shops (e.g. Caseking) and converted the price to U.S. dollars.