XFX 1000W Pro Series 80 Plus Platinum ~ Computer Hardware Mall

We've recently tested the first 80 Plus Platinum PSUs to hit our labs, courtesy of Seasonic and Enermax. Both were good if expensive PSUs, and next up on the test bench is a Platinum series that's sold by a brand without their own PSU factory: XFX. They sent us their newest product, the Pro Series 80 Plus Platinum Black Edition, which sets its sights on the high-end of the market. XFX has created an interesting casing with some unusual elements, but we need to find out how good this model acutally is.

While efficiency is all the marketing rage in the world of PSUs, we should keep in mind that many manufacturers are trying to reach 80 Plus Platinum levels using some "tricks". As we noted in our Seasonic article, there are various routes to higher efficiency, like removing resistors that may fill other roles. Shunt resistors for example transform some of the power into power loss when current flows through it, since there is a voltage drop. That's actually their job as they measure and prevent overcurrent in an indirect way. On the following pages we will show how XFX reached the requirements for 80 Plus Platinum (90%/92%/89% efficiency at 20%/50%/100% load), and we'll also discuss the ODM and how well the XFX model fares in an increasingly crowded market.

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Friday, May 18, 2012