The XPG Fusion Titanium 1600 PSU Review: Outrageous Power, Outstanding Quality

Cold Test Results (~22°C Ambient)

For the testing of PSUs, we are using high precision electronic loads with a maximum power draw of 2700 Watts, a Rigol DS5042M 40 MHz oscilloscope, an Extech 380803 power analyzer, two high precision UNI-T UT-325 digital thermometers, an Extech HD600 SPL meter, a self-designed hotbox and various other bits and parts. For a thorough explanation of our testing methodology and more details on our equipment, please refer to our How We Test PSUs - 2014 Pipeline post.

Most manufacturers target their designs to meet the 80Plus certification requirements with an input voltage of 115 VAC due to the lower standard requirements. The XPG Fusion 1600 does meet the 80Plus Titanium requirements with an input voltage of 115 VAC, reaching a top efficiency of 94.7% and an average nominal load range (20% to 100% of the unit's capacity) efficiency of 93.5%. Switching the input voltage to 230 VAC does increase its average efficiency to 94.1%, but the improvement is not substantial enough to meet the 80Plus Titanium standard thresholds. Nonetheless, the XPG Fusion 1600 undoubtedly is highly efficient, especially when the load is very low, which is crucial with a product with that high a power output.

The stock cooling profile of the XPG Fusion 1600 is well-balanced between performance and acoustics, albeit a bit aggressive at higher loads. We can see that the fan turns on and spins slowly, practically inaudibly, as long as the load is low. It is very impressive that the fan hardly speeds up at all while the load is below 50% and that, in this case, is an output of 800 Watts. Any typical gaming PC would not be capable of forcing the XPG Fusion Titanium to substantially increase its fan speed. When the load is higher than 800 Watts, the losses are enough to warrant a faster fan speed, with the control circuit speeding up the fan as the load increases. The profile is programmed to shoot the fan at maximum speed, even though the temperature readings do not warrant that. Users can also adjust the cooling profile via the software.