Old Astra 4.0 ST vs Astra Osseospeed?


I have a case with an old Astra 4.0 ST. I have only components for Osseospeed and some old 4.0 ST profile abutments. I have realized that the old 4.0 ST has a wider platform than Osseospeed 4.0. I could fit Osseospeed 4.5/5.0 impression coping in to 4.0 ST implant and take impression. Now the question is if old 4.0 ST has exactly the same platform as 4.5/5.0 Osseospeed? Thank you