Windows 11 Impacting AMD CPU Performance, Fix Incoming

Quick overview of articles regarding Windows 11 performance issues with AMD processors:

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Before October 5, only a few thousand people had been able to upgrade to Windows 11 through the Windows Insider program. After that date, hundreds of millions of PCs and laptops became eligible for a free upgrade from Windows 10.

Many users were eager to upgrade to take advantage of the significant improvements that the new OS offered. But it also came with a series of issues, one of which was a serious known issue in which Windows 11 caused performance problems for AMD Ryzen processors.

Performance Issues with Windows 11 on AMD Computers

AMD and Microsoft have jointly discovered that Windows 11 is experiencing performance issues on AMD processors, with multiple areas of degradation. AMD has identified two specific problems. First, for certain applications, there is a significant increase in L3 cache latency, by up to three times, leading to a performance drop of 3-5%, and even more in gaming scenarios. Additionally, applications sensitive to timing when accessing the memory subsystem may be impacted.

Another issue is that FOX1-CPPC2 (Preferred Core Policy) might not schedule threads on the fastest core available. This could lead to performance degradation for workloads that are sensitive to one or just a few CPU threads.

AMD and Microsoft are working together to address these issues with upcoming software and operating-system updates. Microsoft released its first cumulative update for Windows 11 on October 12, but it appears to have made the L3-cache-latency problem worse. That issue will be fixed via a Windows update, scheduled for October 19.

According to AMD on Reddit, the fix for the Preferred Cores (UEFI-CPPC2) vulnerability will be available in an AMD driver update releasing on October 21, 2022.

Windows 11 Gaming Performance

As we mentioned earlier, the Windows 11 update is currently causing a performance slowdown for AMD, with a 3-5% dip observed in affected applications and more in some games – up to 10-15% in gaming, which is typically what's used in e-sports.

If you have an AMD Ryzen processor and play games frequently, you might want to hold off on upgrading to Windows 11 until Microsoft fixes this.

Should I upgrade to Windows 11?

While Windows 11 and Windows 10 share the same core features, there have been design changes that could affect the interface. So far, there are no reports of significant vulnerabilities affecting devices based on Intel or ARM processors. However, there are concerns about performance impacts on computers with AMD processors.

Typically, a new release offers:

• Better overall performance
• Improved support for new software and hardware
• User-friendlier interface
• Greater compatibility and more stable operation

As a result, when a new version of Windows comes out, it is best to upgrade to it. But the initial releases of new versions can be unreliable. So you might wait for Microsoft to fix the inevitable stability and compatibility problems before upgrading to Windows 11.

If you're upgrading from Windows 10, Microsoft advises that you wait to be notified via Windows Update that the upgrade is ready for your PC.

How to download and install Windows 11 in 3 ways

Before you upgrade, use the PC Health Check app to confirm that your device meets the minimum system requirements for Windows 11.

Updating to a new operating system carries some risks, so it's advisable to back up your computer using a reliable backup software before proceeding. If you experience data loss without a backup, you can utilize professional Windows 11 Data Recovery Software to retrieve important files.

1. Use the Windows 11 Installation Assistant

Go to Microsoft's “Download Windows 11” page and use the “Windows 11 Installation Assistant” to install Windows 11 on the device you're using right now. It's the easiest option.

Step 1: Visit the Microsoft Windows 11 download page.

Step 2: Click on “Download now.” Then, follow the on-screen instructions to download and install Windows 11 on your computer or laptop.

This image displays the Windows 11 setup screen.

Create Windows 11 installation media

If you want to install Windows 11 on another or a new computer, you can create Windows 11 installation media and then install from a bootable USB or DVD. You'll need a blank USB flash drive with at least 8 GB of space or a blank DVD.

Step 1: Download the Windows 11 Media Creation Tool from Microsoft.

Step 2: Follow the on-screen instructions in the media creation tool to create a bootable USB or DVD.

Step 3. Insert the bootable USB drive into the PC you want to install Windows 11 on, and then restart it.

Step 4. As it powers on, press F2, F12, Delete, or Esc (depending on the manufacturer) to open the boot menu and select booting from the USB drive or DVD.

Step 5. Follow the on-screen instructions to complete the installation of Windows 11.

3. Install Windows 11 from a Bootable USB Using Win11Builder (UTF-8)

Another simple way to install Windows 11 from USB is by using the Win11Builder tool. It helps you download the Windows 11 ISO and create a bootable USB drive to install Windows 11. And it's free to use!

< strong > Step 1. Launch OS2Go after installation, and click on < strong > Windows Installer Drive Creator. The homepage will display the system information retrieved, which will be constantly updated. Apart from Windows 11, the Win11 Builder also supports downloading Windows 10/8.1.

Step 2: Connect your USB flash drive to your computer. Windows 11 Create Tool will automatically detect it, and you can click the Create button to proceed.

Step 3: If you're using a used USB drive, the software will wipe the data from the USB drive. Once the download starts, wait for it to finish, or step away and do something else for a bit.

Step 4. After successfully downloading the Windows 11 ISO image to your USB drive, proceed to start installing Windows 11 on your computer by following the on-screen instructions from the setup wizard, booting from the bootable USB drive.

Conclusion

The release of Windows 11 not only brought an aesthetic interface upgrade but also the capability to run Android apps. The arrival of the new system has attracted a large number of users to upgrade. However, issues like the ADM performance problem in Windows 11 should not be overlooked. If you have already upgraded, make sure to keep your system updated to the latest version to avoid bugs. If you haven't upgraded yet, you might want to wait for the stable release before doing so.