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Deepcool Gamer Storm DQ850-M PSU Review

Performance Rating

The following graph shows the DQ850-M’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.
The overall performance is at a decent level, however still it is notably lower than the performance of units like the Corsair RM850x (2018), the Seasonic SSR-850FX and the EVGA 850 G3. With better transient response results and a longer hold-up time, this platform could be closer to the competition.

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 PSU 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.

The product’s price should be a bit lower, in order to allow for a higher price 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).

In the noise output section, only the RM850x manages to perform (notably) better, with the rest of the competitors being more noisy.

Efficiency Rating

The following graph shows the PSU’s average efficiency throughout its operating range, with an ambient temperature close to 30°C.

The Seasonic Focus Plus Gold platform along with the Super Flower Leadex II are more efficient, while the Corsair RM850x stay a bit behind.

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