The following graph shows the total performance rating of the NAS in comparison with other units. The comparison is pretty straight forward: the tested unit is shown as 100% and all other units' performance is relative to it. Please note that we only measure raw performance of a unit in the graph below. We don't include any of its available features nor its functionality as a part of the score.
For most of you, the following graph will probably 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 and all relative performance numbers to calculate the Performance-per-Dollar Index. If Newegg doesn’t stock a specific unit, we search for it at other popular online shops (Tigerdirect, Amazon), and popular EU shops are searched (e.g. Caseking) if the unit is not sold in the U.S. The price is, if found in the EU, converted into USD.