XFX has a lot of branding on the new XTR series of PSUs including EasyRail, which means it uses a single 12V rail, on this model providing up to 840W @ 70A as well as a "True Wattage" guarantee and 80 Plus Gold. [H]ard|OCP put these claims to the test when they reviewed this PSU and did not find it lacking.  There were a few tests which the PSU did not excel at but when they tested voltage regulation this PSU finished miles ahead of the competition.  [H] also mentions that this unit was previously sold as the Pro Series Gold, the internals of the two are identical as is the serial number so keep an eye out when shopping so you can see if you can get a deal. Also worth noting is the 5 year warranty, it is always nice to see a company stand behind its products.

"XFX is targeting serious gamers and hardware enthusiasts with its new XTR Series of PSU. XFX suggest other power supplies do not always deliver, "The Wattage you see isn’t always the wattage you get." We will certainly find out if that is true with the XTR 850W PSU delivers the power and efficiency it promises in its marketing."

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