how to get more than 14MB VRAM ....

I am trying to be a PC with macOS ...

hardware:
MSi MEG Z490 ACE
i9-10900k
64 GB DDR4 RAM
XFX RX 580 8G Black Wolf 2048SP

software:
Ventura 13.6.3

VRAM only 14MB - Monitor 41\" instead of 24\" DELL P2423D

HOW to get the GPU recognized?

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TIA

Ralf

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