The issue begins with Microsoft's Virtualization-Based Security (VBS) feature, which enables an umbrella of different security services. After some digging, it's clear that Microsoft explicitly does not recommend one of the security settings for gaming PCs, while the status of another remains unclear. However, Microsoft does suggest that OEMs enable these features on some new pre-built systems. Luckily for enthusiasts, these security mechanisms won't be enabled by default if you update your own system from Windows 10 to Windows 11, or if you do a clean install. Still, we don't like to compromise, and taking a step back on gaming performance isn't acceptable if you don't need the added security - especially when this is an optional feature that OEMs can simply opt out of. The performance impact we measured wasn't nearly as severe as we've seen reported by other outlets. We also have tons of other gaming and desktop PC applications benchmarks, which you can see below.

We recorded a slightly smaller impact on AMD Ryzen systems, with a 4% average for a Ryzen 5000 chip (and an outlier 8% loss in one title).

That may not seem like much to the untrained eye, but that's roughly an Intel CPU generation's worth of disappearing performance. We found that the security mechanisms do reduce gaming performance, with the average impact on an 11th-gen Intel chip being in the 5% range (7% peak in one title). That has gamers up in arms, so we did several rounds of testing in our labs with some of the best CPUs for gaming from Intel and AMD.

Microsoft is taking yet more backlash over its Windows 11 launch, as recent reports indicate that buyers of new pre-built systems could purportedly lose up to 28% of their gaming performance due to frame-rate-crushing security measures.

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