I already posted in the other thread but since we have this specific thread, here are more details:
PS4 and PS4 Pro connected to the router TP-Link Archer C5, CAT6 cables, both PS4's had 1TB HDD, original PS4 1TB WD Blue 5400 rpm, PS4 Pro stock HDD, amount of data copied approx. 850GB and it took 2 hours. Estimates provided by PS4 were not accurate.