When the Wii launched, a few pundits called it “two GameCubes taped together”, which I thought was a bit rude and overly dismissive.
Years later, I started really looking into the technical side of things, and oh my goodness it really is almost two GameCubes taped together. I mean, it works wonderfully and I’m not knocking it, but IIRC the majority of what’s under the hood is either an upgraded version of what was in the GCN, or a doubling of the capacity (in some cases literally two) of the same component.