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

Hot Test Results (~45°C Ambient)

Typical PSU designs take an overall performance hit when they operate in hot ambient temperatures. The XPG Fusion 1600 almost was an exception to that rule, with the unit almost entirely unfazed by the >25C temperature increase. The average efficiency drop is less than 0.15% across the nominal load range, suggesting that the components were hardly affected at all by the higher ambient and operating temperatures. There is practically no effect even when the unit is loaded to 100% capacity.

The main component temperatures of the XPG Fusion Titanium initially seem to be in line with typical high-performance PSU designs but one needs to decipher these graphs closely. Comparisons need to be made at the same level of power output and the maximum output of this unit is 1600 Watts. At an output of 800-1000 Watts and with its large chassis and extremely high efficiency giving it a gigantic advantage, the XPG Fusion Titanium foreseeably maintains very low operating temperatures, significantly lower than most 800-1000 Watt PSUs. The temperature can climb at over 100 Celsius when the unit operates at maximum load but without any palpable consequence.

The very high efficiency of the XPG Fusion Titanium allows it to mostly maintain the same cooling profile, even in this adverse operating environment. There is little difference to the fan’s speed or noise when the load is up to 900 Watts, even though the ambient temperature is far greater than before. At high loads, where the temperature rises alarmingly high, the unit seems to be ignoring the stock cooling profile and shoots the fan at maximum speed a little sooner than before. The fan will be very loud in these conditions but no unit is efficient enough to operate silently inside a hotbox and still reliably output up to 1.6 kWs.