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Gigabyte Xtreme Gaming 1200 W PSU Review

Gigabytes re-enters the high-end PSU market with its Xtreme Gaming 1200 W PSU. Besides high capacity, it also features Platinum-rated efficiency, modular cables, and interesting looks. This unit is built to meet the demands of enthusiasts, to be sure.

Ripple Measurements

To learn how we measure ripple, please click here.

The following table includes the ripple levels we measured on the XP1200M's rails. The limits, according to the ATX specification, are 120 mV (+12V) and 50 mV (5V, 3.3V and 5VSB).

Test12V5V3.3V5VSBPass/Fail
10% Load23.9 mV7.1 mV9.3 mV5.5 mVPass
20% Load16.0 mV7.8 mV11.3 mV6.5 mVPass
30% Load17.6 mV9.2 mV12.3 mV7.3 mVPass
40% Load21.1 mV10.0 mV12.8 mV7.9 mVPass
50% Load24.8 mV12.1 mV13.5 mV10.0 mVPass
60% Load25.4 mV13.7 mV15.5 mV10.4 mVPass
70% Load26.3 mV14.3 mV18.7 mV12.3 mVPass
80% Load29.3 mV17.1 mV20.5 mV13.0 mVPass
90% Load32.5 mV17.8 mV20.9 mV15.0 mVPass
100% Load35.8 mV20.6 mV22.7 mV15.8 mVPass
110% Load39.6 mV22.6 mV24.4 mV17.9 mVPass
Cross-Load 128.2 mV9.3 mV12.7 mV5.8 mVPass
Cross-Load 235.6 mV20.7 mV25.1 mV16.0 mVPass
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Ripple suppression is pretty good on all rails. Because the competition in this category is really tough, Gigabyte's XP1200M doesn't place higher in our comparison charts. Still, this doesn't change the fact that Enhance fares well.

Ripple Oscilloscope Screenshots

The following oscilloscope screenshots illustrate the AC ripple and noise registered on the main rails (+12V, 5V, 3.3V and 5VSB). The bigger the fluctuations on the screen, the bigger the ripple/noise. We set 0.01 V/Div (each vertical division/box equals 0.01 V) as the standard for all measurements.

Ripple At Full Load

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Ripple At 110-Percent Load

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Ripple At Cross-Load 1

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Ripple At Cross-Load 2

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