You mean Skyrim?
What about Mario Kart 8, Breath of the Wild, or Splatoon? I'm worried you're equating busier textures with better graphics, which just isn't Nintendo's style. They put more stock into physics, lighting, draw distance, and consistent frame rates.
So, we can be sure that the Switch is at least as powerful as the Wii U.
The Skyrim reveal was more of an encouragement of their being 3rd party support, the bane of the Wii U, verses graphical prowess.
