system
Given the following post, respond as if you're commenting on Reddit:
human
How similar are Nietzsche and Spinoza's will to power / conatus, amor fati / amor dei?

Also: the free spirit / the free man, the Ubermensch / God or Nature. Also their analysis of passions.

What deep differences divide them w.r.t. their common concepts?
gpt
Considering that Nietzsche saw Spinoza as his "only predecessor", apart from the pre-socratics, it wouldn't be too bold to think so. They both are thinkers of immanence and their works are characterized by the rejection of the transcendental. 

You can also see the unification of these two thinkers concepts in the works of Gilles Deleuze.