First of all, let's go back to Nvidia Tegra X1. The SoC, launched as early as 2015, integrates four Cortex-A57 cores, while the GPU part uses the Maxwell architecture, with a total of 256 stream processors. The SoC uses TSMC's 20nm technology, mainly for Nintendo's Switch mainframe and Nintendo's own TV box.

Nintendo says the Switch Lite has a longer battery life, but given its smaller size and possibly lower battery capacity, this may well suggest that the Switch Lite is likely to be based on a more advanced manufacturing process.

The original Tegra X1 chip is produced on the 20nm process node of TSMC, and its energy efficiency can not be compared with today's process.

AnandTech, a foreign media, said it had recently discovered an updated version of the Nvidia X1 and that the working voltage of the chip had changed significantly. So Nintendo Switch's new chip is likely to be made in a 16nm or 12nm process.

To be 100% sure what processor the Switch Lite has, we have to wait for the disassemble report after it is released.