RTX 3080 - where is 1GB VRAM

[WaterV70]

Hello, does anyone know why MSFS shows me 1 GB of VRAM less? Hardware: MSI RTX 3080 10GB, motherboard: MSI Z590 Torpedo, processor: I5-11600K, 32GB RAM. Thanks for all the tips. Regards.

Screen:

[jpht1964]

Probably used by the Operation system?

[WaterV70]

On desktop it reports me using 0.4GB, maybe it actually rounds up, hmm.

[DensestSnail693]

DX effects and Windows paging instruction sets