Thats a pretty general question your asking....
It will differ for every person, and also depends on diet, training, and dosage.
Prop is faster acting then cyp or eth though, so it will be active a lot faster, but levels drop a lot faster too.
The results will not be as dramatic as d-bol, though the strength gains will come quickly, you will not retain as much water meaning the gains will take a week or two, all depending on the factors listed above.