Holy shit it's here
http://techinsights.com/about-techinsights/overview/blog/nintendo-switch-teardown/
So I guess it's officially a tx1
After subsequent processing of the GPU from the Nintendo Switch, we have determined that the processor is the Nvidia Tegra T210. The T210 CPU features 4 Cortex A57 and 4 Cortex A53 processor cores and the GPU is a GM20B Maxell core.
Stock X1, no customization that's what was just confirmed
Jmon with me
Edit:
Helpful gif comparing stock X1 and the die shot above
JMON