Windows: VBS costs up to 10% performance on RTX 4090

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from Alexander Pensler
If you leave “Virtualization-based Security” (VBS) activated in Windows, you could give away graphics card performance. Even with a Geforce RTX 4090, up to 10% performance loss is possible.

When Windows 11 was released, “virtualization-based security”, or VBS for short, and the associated “Hypervisor-Enforced Code Integrity (HVCI)” to ensure memory integrity caused a lot of discussion among gaming enthusiasts: The security functions should cost up to 30% gaming performance, were only activated in individual cases. Tom’s hardware now reports that an activated VBS function can eat up up to 10% of gaming performance even on a Geforce 4090.

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VBS also active by default in Windows 10 Home?

Toms hardware author Avram Piltch uses Windows 10 Home on his main computer. Despite a fresh installation of the Microsoft operating system, he found that VBS was activated even though he had never activated this security feature. He also used a Windows 11 computer that accidentally had VBS active for his benchmarks. The test system consisted of a Core i9-13900K, 32 GiB DDR5-6600 G.Skill RAM and an M.2 SSD. He recently ran his RTX 4090 benchmarks again on this PC with VBS disabled and noticed some increased FPS values.

Continued performance degradation from VBS on Windows 11?

While some games like Bright Memory Infinite were unaffected by VBS being on or off, according to Toms Hardware, MS Flight Simulator saw about a 10% increase in average frame count and about a 15% increase in 1% low -Record FPS. On average for all games tested, the Toms hardware author determined a performance loss of 5% with activated VBS, but in 4K UHD the loss was only 2%.

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Source: Tom’s hardware