This network performance question, phrased in the way you did here, comes up a lot. I heard it a couple of times during q&a after talks at EuroBSDcon.

I wonder what answer you expect. A "yes"/"no" answer?

How could anyone answer this question in a meaningful way? How are people supposed to know what kind of performance you need, and for which application? How are people supposed to even judge whether the proposed reference point (Linux) performs well for you?

In the end, the best answer you'll get will always be "try it and see for yourself"...