Does the clipping plane affect how well the game preforms?

I’m wondering if when you set the clipping plane to something low if only the polygons that you can see are rendered, thus improving the game’s fps? Because if it does I can do the level I want, otherwise I’ll have to break it up into more than one smaller level.

Thanks to anyone that can answer this for me!

Yes, Unity does Frustum culling on a per-object basis.