Enermax REVOLUTION D.F. X 1200W Power Supply Review

Power Efficiency and Ripple Testing

Voltage Ripple and Efficiency Testing

When reviewing new power supplies at OC3D, we use our dedicated SunMoon PSU Tester, one of the most expensive (if not the most expensive) tools in the company’s arsenal. Here we can see exactly how well a unit functions. We look at both a PSU’s efficiency and power stability. To do this, we utilise bespoke PSU testing equipment to give us an in-depth look at each power supply’s performance. This kind of data collection is not possible when using a PSU with standard PC components.

Power Efficiency

Efficiency-wise the Enermax REVOLUTION D.F. X 1200W sits on the lower end of our review charts. This is to be expected from an 80+ Gold rated power supply, as it has been a long time since we have received a sub-80+ Gold rated PSU for review. The REVOLUTION D.F. X 1200W offers the efficiency levels that users should expect from an 80+ Gold Rated power supply, being over 89% efficient at all times.

Voltage Ripple

Voltage ripple is underlooked by consumers.  One way of  best ways of describing ripple is “voltage stability”, and it is an important factor of PSU design. A PSU with bad ripple will see voltages vary a lot more, which can damage components or shorten their lifespan in extreme cases. Voltage ripple stability is one of the many reasons why you should buy a high-quality power supply and avoid anything that isn’t 80+ certified.

An important thing to note here is that none of the PSUs in this graph are “bad”, even bottom of the chart units like the original Corsair RM1000 (2014) bring usable within your system without any issues. Even so, having low ripple is an important factor to consider when purchasing a new PSU. Cleaner power will help extend your PC’s components’ lifespan by placing each product’s power circuitry under less strain. Even if the RM1000 is usable in a modern system, though, we would expect all new high-end power supplies to perform better than this unit in terms of ripple. A lot has changed since the days of the RM1000.

Enermax’s REVOLUTION D.F. X 1200W provides us with solid voltage ripple results. Ripple is kept under 22.1 mV in our testing, and this is at low loading levels. At higher load levels, ripple is lower, which is good news for a high wattage PSU.