XFX XTR Series 850W PSU Review

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Ripple Measurements

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Test	12V	5V	3.3V	5VSB	Pass/Fail
10% Load	12.0mV	10.3mV	11.4mV	4.5mV	Pass
20% Load	18.0mV	12.1mV	10.7mV	5.0mV	Pass
30% Load	21.5mV	12.3mV	11.4mV	5.6mV	Pass
40% Load	21.5mV	12.6mV	12.5mV	5.7mV	Pass
50% Load	20.4mV	12.0mV	13.8mV	6.6mV	Pass
60% Load	23.1mV	12.8mV	13.9mV	7.1mV	Pass
70% Load	25.3mV	13.6mV	13.8mV	8.1mV	Pass
80% Load	26.7mV	13.1mV	14.7mV	8.9mV	Pass
90% Load	28.6mV	14.1mV	15.3mV	9.6mV	Pass
100% Load	32.9mV	16.3mV	17.9mV	11.7mV	Pass
110% Load	34.8mV	17.9mV	18.0mV	13.2mV	Pass
Cross-Load 1	18.3mV	14.2mV	15.8mV	26.8mV	Pass
Cross-Load 2	31.3mV	13.6mV	14.3mV	11.7mV	Pass

Ripple suppression on the minor rails is very good. We could easily praise the +12V rail's performance as well, if we hadn't already seen the EVGA G2/P2 and Corsair RMx and RMi units, which set the bar too high in this section. Under no circumstances can you call 33mV of ripple under full load a mediocre performance, that's for sure. However, when you have measured below 15mV under the same conditions in other PSUs, you have no other option but to expect more from an OEM like Seasonic.