FSP Dagger Pro 650W Power Supply Review: Compact and Strong

Why you can trust Tom's Hardware Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test.

Performance, Noise and Efficiency

Performance Rating

Click to see more results

The new Dagger performs much better than its predecessor. But still the platform that FSP used in the EVGA 650 GM model is notably better. FSP should use the same platform in its own Dagger Pro.

Noise Rating

The graph below depicts the cooling fan's average noise over the PSU's operating range, with an ambient temperature between 30 to 32 degrees Celsius (86 to 89.6 degrees Fahrenheit).

Click to see more results

If you plan on making a silent PC, the Dagger Pro 650W isn't a good option. The aggressive fan profile and the double ball-bearing fan is not the ideal combination for silent operation.

Efficiency Rating

The following graph shows the PSU's average efficiency throughout its operating range with an ambient temperature close to 30 degrees Celsius.

Click to see more results

The overall efficiency is high enough, but no match to the performance of both the Corsair SF600 and the EVGA 650 GM.

MORE: Best Power Supplies

MORE: How We Test Power Supplies

MORE: All Power Supply Content

Contributing Editor

Aris Mpitziopoulos is a Contributing Editor at Tom's Hardware US, covering PSUs.