https://www.polygon.com/2017/12/27/16821694/nintendo-switch-card-size-capacity-report

Nintendo has reportedly postponed the release of higher capacity Nintendo Switch cartridges, according to the Wall Street Journal. While the company originally planned to give developers much larger 64 GB game cards to work with in the near future, the Wall Street Journal says that Nintendo has delayed them until at least 2019.

Technical issues with formatting the cartridges led Nintendo to shift the planned release from mid-to-late 2018 to the following year, sources told the Wall Street Journal. Instead, developers will have to keep working with the largest sized cart currently available, 32 GB. That’s a significant difference from what Blu-ray discs, used by both PlayStation 4 and Xbox One, top out at: Blu-rays can hold as much as 50 GB of data. (For context: Doom is a 25 GB download file; L.A. Noire requires almost 30 GB of space.)