The download size for PS4 users will be 24.391GB. Whereas, users on the XB1 should expect to see the download only come to 22.98GB.
While your download is in progress why not have a read through one of our most recent articles in which we went over what you should expect in the Beta, as well what changes did not make the final cut for it.
Are you not able to play it yet? Do you have any questions about the beta? Please, feel free to ask in the comments below