Over a year of rumours have amounted to the Nintendo Switch OLED model coming out, featuring a slightly larger OLED display, “improved audio,” a built-in ethernet port, and a better kickstand. 

But one question remains why didn't they upgrade the CPU or Ram?

The switch will not incorporate HDR or won’t do 4K or 120 frames per second, either. Instead, it will cap out at 1080p when attached to a TV, and its 7-inch OLED display will do just 720p.