To turn on Developer Mode:
- In MSFS ‘General Options’ → Experimental → Developer Mode
- When in the plane, Click on ‘Debug’ in the menu at the top.
- Select ‘Display FPS’.
Here’s a screenshot of mine flying over NYC. I’m definitely CPU-limited in these heavy object-laden areas. Note how little RAM is being used.
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Here’s a screenshot of a low stress flight. Big difference when it’s terrain, and not buildings.
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AMD 5800X3D
RTX 3090 Ti
64GB (49GB usable, 15GB used by a RAM drive) DDR4/3600, CAS14, using XMP2