It was launched in 2017 with a SoC from 2015, and the SoC contained a CPU that launched in 2012.

Contrast this with the PS5, which launched in 2020 with an AMD Zen 2 CPU which launched in 2019.

And the original DS launched with a pitiful 67 mhz ARM9 CPU and 2mb of RAM. It sold 150 million consoles. Because the games were good.

If you care about tech specs, consoles are a losing battle. Even if they are a good price-performance when they release, the length of console cycles will inevitably cause them to be underpowered and outdated by the second half of their existence, and yet many great and generation defining games come out closer to the end of a console's life cycle.

Maybe I'm missing something, but the X1 CPU seems remarkably different from the 2012 Tegras like we saw in the Nexus 7 tablet. Here's a comparison I found https://gadgetversus.com/processor/nvidia-tegra-3-t30l-vs-nv...

In what sense did the X1 cpu launch in 2012?

Despite what that site says, the Tegra X1 isn't a CPU or Processor - it is a SoC.

i.e. The X1 is a chip which contains lots of stuff including some processors from 2012.