Optimized For big.LITTLE But Not for MCM? – AMD Ryzen Processors Face up to 15% Performance Hit on Windows 11 OS – Patch Imminent

Oy vey.

By now you probably already know that Microsoft have released its new Windows 11 operating system and consumer reception of the new OS is about as expected really in the sense that Windows 11 is a buggy, broken and perhaps slow operating system.

Which is understandable considering that Microsoft seemingly have been incapable of releasing an update to Windows 10 without breaking something else entirely and with the new Windows 11 OS it shouldn’t come as a surprise that in hindsight it’s more of a UI refresh of its predecessor is the ability for the scheduler to more appropriately allocate the cores of Intel’s upcoming Alder Lake processors which feature a big.LITTLE design of incorporating eight full cores with eight additional Atom cores.

Whereas I’m sure many W10 users will refuse to update operating systems as they refuse to be early adopting retards yet are still retarded enough to go and purchase one of Intel’s Alder Lake processors which I’m sure would cause the Windows 10 OS to have a meltdown as its unable to decipher and allocate which cores when going from apps such as the calculator to proper gaming applications.

But I digress, Windows 11 is the ideal OS to make the most out of Intel’s garbage big.LITTLE design and yet coincidentally the W11 OS as of right now actually impedes upon AMD Ryzen processor performance by as much as 15%, now isn’t that convenient.

Oh yeah, AMD themselves report that the Windows 11 operating system may cause performance dips of its Ryzen processors by as much as fifteen percent.

For the Intel corporation it has to be said that in the past companies such as Dell were the best business partners that money could buy… quite literally, and perhaps maybe Microsoft shall join that list as well considering how both companies loved to tout about how close the relationship between them and M$ have been in conjunction for the Windows 11 development process and yet seemingly it’s once again AMD who receive the shortest straw.

The reasoning behind this illusive performance degradation from a mere operating system is down to how on Windows 11 the L3 cache latency of an AMD Ryzen processor can be as much as three times slower, which has a dramatic impact on applications from synthetical benchmarks to gaming performance.

Though I’m sure considering that no issues have been reported that Intel processors that exhibit high cache / memory latency haven’t been shafted such as Intel’s disposable 11th generation Rocket Lake CPUs which compared to generations past feature abysmal latency on its lonesome, which had a dramatic effect on Rocket Lake gaming performance figures comparative to older Skylake processors. (And I’m sure Alder Lake will be no different.)

AMD released an advisory alerting to the performance hit on the Windows 11 operating system stating that most performance hits would be around 3-5% in general applications with some outliers to be found in games due to the increased L3 cache latency, combined with improper core scheduling where single-threaded games will result in additional degraded performance as well, typically impacting AMD Ryzen processors with 8-cores or greater.

However these issues intend to be fully resolved in an upcoming Windows 11 update expected sometime in October.