HWINFO identify fake nvidia GPU - GPU-Z did not

Hi guys i'm Michele from Italy,

in upgrading HWINFO from 5.88 to 5.90 i noticed that it idenfied my Nvidia GPU as fake;

in searching with google i found that also GPU-Z has this capability, but the 2.13 version did not say that my GPU is fake;

how can i know the true?

Thanks in advance