Nintendo reveals new Switch model with enhanced battery life
https://www.overclock3d.net/news/systems/nintendo_reveals_new_switch_model_with_enhanced_battery_life/1

Nintendo has likely shrunk Nvidia's Tegra X1 chip, which powers the console, from 20nm to 16nm, creating a smaller overall chip which consumes significantly less power than before.
任天堂はおそらくTegra X1を20nmから16nmにシュリンクして省電力化した

他のサイトだとSoCに手を入れた可能性がある、くらいしか言及ない