That wasn't what the poster asked for. He said "Discrete". Don't move goalposts on me.
Hang on.
He said, in reply to your assertion of 2011 mac mini having a radeon 630m, that he meant a
desktop GPU.
And desktop clearly means
in this case a non mobile model otherwise what does a 'desktop' gpu mean otherwise once he has rejected your proposed mobile model, other than a non mobile model.
That's one point where the goal post are not moved and you have been caught out.
Now a completely separate issue that also indicates your disingenuousness is your coincidental[!] reference to the 2011 mac mini, knowing full well that even the mobile gpu has been removed from the 2012 mini, ie the current model is even worse than a mobile model as it's is an integrated gpu.
And there's no way to slice your way out of this.