What additional system requirements will I need to have to use this feature effectively?

None. This should work on both PC and Mac computers similar to the Character Builder. To access, you will need: active and stable internet connection and a registered DDB account.
If you experience issues due to your hardware, please let us know. This tool will be available for up-to-date versions of the following web browsers: Chrome, Firefox, Safari, Brave, and Edge. Maps will be accessible via desktop and mobile web. At this stage, Maps is not available on the D&D Beyond app.