Nintendo NX vs. Switch: Same Console, Different Names (Codename vs. Official)

Yes, identical.

• NX: Internal development codename (2013–2016).
• Nintendo Switch: Official product name (announced Oct 2016, launched Mar 2017).

All "NX" rumors, leaks, and devkit references point to the Switch hardware (Nvidia Tegra X1 hybrid). No separate "NX" console exists.