Clone vs new performance

[winksaville]

In csgrs T's in CSG must implement Clone. Is there any performance generalities you can rely on that says that clone is cheaper than new?

[timschmidt]

Clone is required because some operations result in new polygons, which by default in many cases get the metadata cloned and attached to them as well.

[winksaville]

In my rerf-cubes-cq app I'm creating 72 objects that are identical except for some text on a a couple of faces. So I was just curious which might be faster. At some point I might try to benchmark it when I port it to csgrs.