You can determine it from your screen resolution test.

Snap (three-column layout): Windows 11 allows a custom grid for three windows with a feature called “Snap.” It requires at least full-HD support of 1080p (1920x1080p).

Intelligent video conferencing and Multiple Voice Assistant: if your existing device has microphones and speakers, you are covered.Presence: this is a new smart feature for human presence detection and is only available with compatible laptops, such as Dell Latitude 7400 and others.The driver gets automatically updated and supported with the compatible CPUs discussed above. DirectX 12 Ultimate: DirectX 12 Ultimate is the latest standard for next-generation games.DirectStorage: this feature requires an NVMe solid state drive (SSD), and it is possible to upgrade your system from hard disk drive (HDD) to SSD.Cortana: requires microphone and speaker support and is available for select countries such as the United States, Australia, and India (full list on Microsoft site).Clearly, this monitor wouldn’t support Auto HDR. In the below example, HDR support has been greyed out in Display capabilities. To know whether your existing laptop screen supports HDR, go to “Windows HD Color Settings” from the search box. Auto HDR support: this necessitates an HDR monitor.5G support: to allow for significantly faster speeds in the new standard, you will need a 5G-capable modem.

Let’s run a summary of the capabilities your existing device should have to support the needed features. Windows 11 has added key features such as 5G support, which are above and beyond the minimum requirements. (See feature-specific tests for “Snap” layouts). However, it’s recommended to go for a 1080p (1920×1080 pixels) full-HD resolution instead of 720p. It never hurts to be absolutely sure, though.

For most devices manufactured in the last seven to eight years, finding a Windows 11-compliant resolution is not going to be an issue.

Windows 11 system requirements checker