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Performance Rating
The following graph shows the SU9-700’’s total performance rating, comparing it to other units we have tested. To be more specific, the tested unit is shown as 100 percent, and every other unit's performance is shown relative to it.
Compared to similar spec units, the SU9-700 fares pretty well as you can see since it leaves many other models behind. Only the more expensive EVGA B3 units perform notably better, but those belong to a higher category.
Performance Per Dollar
The following chart may be the most interesting to many of you because it depicts the product’s performance-per-dollar score. We looked up the current price of each power supply on popular online shops and used those prices and all relative performance numbers to calculate the index. Note that all of the numbers in the following graphs are normalized by the rated power of each unit.
Thanks to the good performance and the normal price, the be quiet! offering achieves a high performance per buck score.
Noise Rating
The graph below depicts the cooling fan's average noise over the PSU's operating range, with an ambient temperature between 30°C and 32°C (86°F to 89.6°F).
Usually Bronze efficiency and low output noise doesn't go together, but the SU9 models seems to be an exception in this rule.
Efficiency Rating
The following graph shows the PSU's average efficiency throughout its operating range, with an ambient temperature close to 30°C.
The overall efficiency is on par with the rest 80 PLUS Bronze and ETA-A- units. The only two Gold and ETA-A units that we have included in the charts, for reference purposes, have a significant lead over the rest.
