Comp Sci (or related) Masters? Options?

[KMcLean]

University of colorado boulder offers MSc in Computer Science and Data Science on Coursera, I heard you can do some of their Coursera courses first and earn credits towards your degree (need to be checked).

I'm doing a CU Boulder masters on Coursera, and yes, the courses are all available on Coursera.  The only differences between the "Coursera" versions and the "for credit" versions are additional assignments or final exams.

Can you tell me how much more from the coursera version please? Say there are 4-5 weeks on coursera version for a course and how much more added for the for credit version please? I am considering finishing all coursera version before upgrading it to paid for credit version to complete the add ons finals. Thank you.