They never did for anyone else, they develop their stuff and sell it. Even the PS3 RSX was a glorified G70 part.
Doesn't the RSX include northbridge functionality?
Regardless, at that time the nForce efforts were still ongoing.
The Tegra X1 was a fantastic choice for the Switch. It was one of the best, if not the best, in graphics performance during the development of the Nintendo Switch.
Of course it wasn't. Do we really need to come back to this every other month?
The Snapdragon 820 that was ready in 2015 would have run circles around the Tegra X1 with a sub-500MHz GPU. During 2015 even Samsung's Exynos 8890 would have been available for sampling to partners, and it too would have provided much better performance at the same power consumption. Either company could have been able to develop a radio-less and ISP-less solution with CPUs optimized for lower frequencies for Nintendo had they paid enough money for it, or either company would have gladly sold Nintendo their high-volume SoCs.
Do you really need to make these broad generalizations about Tegra X1 being
OMG the best possible SoC for 2017 handheld release when it's very obviously and factually false? During all the ~8 years they were active in the mobile SoC market, nVidia never hit any power/performance jackpot. Their inability to compete is the reason they left that market.
What nvidia did provide to Nintendo (and the others could not) was a vertical stack for software development and optimization, an already existing development team that was specializing in porting PC games to ARM SoCs and a close presence next to 3rd party developers.
I.e. what nvidia could provide in the overall package was money savings in software development / optimization efforts plus a sizeable discount on an objecticely failed existing SoC.
nVidia did
not a better hardware solution than others could, for a handheld console. The benchmarks exist, the power consumption comparisons exist and everything was made by multiple outlets and experts. Let's stop pretending they don't.