Windows 11 bug could reduce Ryzen CPU performance by up to 15%, AMD says


Most individuals should not rush out to put in brand-new working system variations on day one, and Windows 11 isn’t any exception to that rule. AMD has published information about a pair of bugs that may scale back efficiency for Ryzen processors operating Home windows 11 by as a lot as 15 %, although how a lot slowdown you observe will fluctuate based mostly on what you are doing and the CPU you are utilizing. AMD expects each bugs to be mounted later this month.

The primary situation AMD has recognized will increase L3 cache latency by as much as 3 times, affecting apps that depend on quick reminiscence efficiency. AMD says that almost all affected apps will decelerate by between 3 and 5 % however that some “video games generally used for eSports” may see dips of between 10 and 15 %. AMD says {that a} Home windows replace will repair this situation later this month, so so long as you are checking for and putting in Home windows updates repeatedly, you will not have to do something particular to resolve the issue.

The second bug is said to an AMD processor function that tries to make use of your quickest particular person CPU cores when operating evenly threaded duties moderately than treating all cores the identical. AMD does not put a quantity on this one however says the issue “could also be extra detectable” in processors with eight or extra cores and a 65 W or larger TDP. This would come with most 2000, 3000, 4000, and 5000-series Ryzen 7 and Ryzen 9 desktop CPUs and APUs. AMD says {that a} “software program replace,” not a Home windows replace, will probably be launched to repair the issue later in October, so you could want to put in new AMD chipset drivers or another software program to get the repair.

The AMD Ryzen points are separate from efficiency slowdowns brought on by a few of Home windows’ virtualization-based safety features. Specifically, testing by outlets like Tom’s Hardware has proven that the Reminiscence Integrity safety function can scale back efficiency by a couple of share factors in some video games and normal computing duties, although the outcomes fluctuate broadly based mostly on the software program you are utilizing and the processor you may have. The function is included in each Home windows 10 and Home windows 11 however is disabled by default in each working programs for all however the latest laptops and desktops bought by main PC makers.

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