Stateless SF app VS Stateful SF app

Question

I want to compare the "recovery" time in a node down scenario for stateful/stateless apps.

I think for a stateful app, it needs to promote a secondary replicate to primary.

For stateless app, it requires to start a new partition in a different node.

I suppose stateful app should be faster, but how fast it can be compared with stateless app? Is there any range I can refer to?