AMD reports that Windows 11 may be causing a performance dip of up to 15% on Ryzen CPUs
A fix is in the works and coming later this month.
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If you have anAMD Ryzenchip in your gaming rig, you may want to hold off on upgrading toWindows 11for a bit. AMD and Microsoft announced that Windows 11 compatible AMD CPUs “may exhibit reduced performance in certain applications when running Windows 11,” according to ablog postthat our friends over atTom’s Hardwarespotted.
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This means more than100 AMD processorscan be affected. According to AMD, one of the issues is the measured and functional L3 latency can nearly triple, which lowers the performance of certain applications that rely on memory and cache latency, such as games.
The other problem lies with AMD’s “preferred core” feature not working as advertised. Preferred Core assigns apps to the fastest core on the chip. This, too, may cause noticeable performance dips with chips that are 65W and higher.
Below is the full AMD advisory notice about these two know issues:
AMD confirms that every Ryzen CPU that’s supported by Windows 11 is impacted, along with EPYC and Anthlon chips.
Our testing of a Ryzen 9 5900X on both Windows 10 and 11 showed no appreciable difference in performance, but that is one chip out of more than a hundred on the list. (Though we’ve found other issues that could affectgaming performance on Windows 11.)
Right now nothing is being reported on how Windows 11 is affecting Intel chips, though I’m sure if you’re Intel, you’re not shedding any tearsfor the competition.
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AMD says both a Windows and software update later this month should resolve the issues. Windows 11 is currently out now as a free upgrade for Windows 10 users. Considering all this, though, you may want to do what some of our readers are doing andwait tomake the upgrade.
Jorge is a hardware writer from the enchanted lands of New Jersey. When he’s not filling the office with the smell of Pop-Tarts, he’s reviewing all sorts of gaming hardware, from laptops with the latest mobile GPUs to gaming chairs with built-in back massagers. He’s been covering games and tech for over ten years and has written for Dualshockers, WCCFtech, Tom’s Guide, and a bunch of other places on the world wide web.
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