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XFR

by Sam ChenFebruary 12, 2017

XFR (Extended Frequency Range)

In AMD CPUs XFR, or Extended Frequency Range, is an automated overclocking feature in AMD’s Zen CPU architecture that was first introduced on AMD’s Ryzen CPUs. For CPUs that have XFR enabled, XFR will allow dynamic adjusting of the boost clock frequencies based on the capabilities of the CPU cooler. In other words, XFR allows fully automated overclocking by simply installing a powerful CPU cooler.

In the AMD Ryzen 7 1800X and Ryzen 7 1700X, XFR increases the processor’s frequency by an additional 100MHz above the boost clock with XFR. For example, the Ryzen 7 1800X features a base clock of 3.4GHz, a boost clock of 4.0GHz, and with a capable solution, will overclock to 4.1GHz with XFR.

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Sam Chen
Hardware and Technology Enthusiast. SSD Evangelist. Editor-in-Chief. You can find Sam's full biography here