Our load tests utilize a couple of FAST ATE active load testers and a variety of other equipment such as an oscilloscope, power conditioner, temperature probe and a power consumption meter. You can read more about our standard testing approach here.
The tests performed are based around six conceivable setups that are out there and progressively load down the PSU up to the power supply's limits or 1000W, whichever comes first. Since our test equipment's limits are equal to that of the XFX ProSeries 1000W, we can test it to the maximum.
Let's start by taking a look at the voltages to see how well this unit did during testing. Starting with the 12V rail, we see 3% regulation from start to finish with a total drop of .29V throughout all the tests. The 5V rail didn't quite fair as well with 4% voltage regulation and a total drop of .26V. Moving towards the 3.3V rail, we see that regulation stays at 4% with a total voltage drop of .16V.
DC output quality was OK from start to finish. Starting out, we were clearly able to see a ripple on the scope during Test 1 where we measured noise at a low 12mV peak to peak. This steadily increased as the loads also increased. By the time we had reached around 50% load, the unit ripple had crept up to 33mV. Under full load, we saw that the noise on the 12V rail had crept up to 53mV.
The XFX ProSeries 1000W is rated for 80Plus Platinum efficiency. This means that the power supply must perform at 90%/92%/89% efficiency at 20%/50%/100% loads respectively. As you can see, the XFX ProSeries managed to score a pass while on our test bench. There were several times that the power supply was right on the edge. This would explain why the 1050W ProSeries PSU is only rated for 80Plus Gold efficiency.
XFX has a great power supply with the ProSeries 1000W. It is loaded with features, has great cable selection and a ton of power to handle just about whatever you can throw at it. Voltage regulation was good, with 4% regulation on the minor rails and 3% on the single 12V rail. The unit also had good DC output quality with a maximum of 53mV of ripple under full load and is backed by a five year warranty. On top of that, that unit has great efficiency, proving that it is worthy of the 80 Plus Platinum certification that it bears.
Unfortunately the unit comes at the very steep price of $250. Enthusiasts are used to paying a premium for additional features and better performance, but at that price, it is expected that more is included. On top of that, enthusiast level performance is expected and 4% voltage regulation with greater than 50mV ripple on the 12V rail is not acceptable. Those that are doing their shopping will find that they can get their hands on the Enermax MaxRevo 1350W for just a little bit more coin and get better performance all the way around. Hopefully XFX drops the price of the unit soon and makes it a bit more attractive.
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- Page 1 [Introduction, Specifications, Availability and Pricing]
- Page 2 [The Packaging]
- Page 3 [Inside the Box]
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