Hello again guys
I leave a new question, please help me to understand.

I am trying multiple options when I launch the vanitysearch, and I realize that if I "execute" it with -t 0 (which is the same as using it without a processor, and therefore, it would only be with a video card) it does not find anything, even after 10 minutes

Testing with a list of 1,000,000 prefixes, each with a size of 9 letters.

on the contrary, if I try with -t 6, there if I find values. (an average of 1 every 10 seconds)

Could it be that in the end only my processor works and not the gpu?
Shouldn't I find something with GPU alone?
thanks