Diablo 3 download/install sizes are much higher on PS4
The Ultimate Evil Edition of Diablo 3 – which includes the Reaper of Souls expansion – is much larger in terms of file size on PlayStation 4 than it is on Xbox One.
To download the game from the PlayStation Store means downloading 62.7GB of data. The retail version we’ve installed from disc to review, however, only occupies 41GB.
Diablo 3: Reaper of Souls – Ultimate Evil Edition isn’t listed on Xbox.com or the Xbox Live Marketplace so the download size for Xbox One (or Xbox 360) isn’t known. The retail version Digital Foundry installed on Xbox One occupies 21.82GB – just over half the space required on PS4.