The issue was traced to the firmware Trusted Platform Module (fTPM) built into AMD processors. Windows 11 has a strict requirement for TPM 2.0. The operating system was frequently communicating with the fTPM, causing delays in the processor's interrupt processing.
I’ve been running Windows 11 on my AMD Ryzen 7 5800X for over a year. Here’s the honest take on how the OS performs on AMD hardware, including the good, the bad, and what’s been fixed. windows 11 amd
For AMD users, particularly those gaming, VBS can reduce performance by anywhere from 5% to 15%, depending on the title and the CPU generation. Because Ryzen chips rely heavily on raw throughput and low latency memory access, the virtualization overhead can introduce latency. The issue was traced to the firmware Trusted
Windows 11 requires TPM 2.0. Most AMD boards (B450, B550, X570, etc.) have it, but often disabled by default. You’ll need to enter BIOS → enable fTPM. Not hard, but annoying for casual users. I’ve been running Windows 11 on my AMD