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A couple notes - while the headline says it's an octa-core chip, it actually has 16 cores with different VLENs:

- 8× X100 cores @ 2.4 GHz (general-purpose, VLEN=256)

- 8× A100 cores @ 2.1 GHz ("AI-optimized", VLEN=1024)

By default, programs only run on the X100 cores, but there's a way to start processes on the A100 cores: https://github.com/sanderjo/SpacemiT-K3-X100-A100/blob/main/...

A more detailed write-up on the uarch can be found here (PDF auto downloads): https://forum.spacemit.com/uploads/short-url/60aJ8cYNmrFWqHn...

I believe this is the first RVA23-compliant RISC-V SBC on the market - excited to get my hands on one and test.



> the Porter team made the migration surprisingly easy all things considered

As the second engineer who worked on this migration I'd like to add on to this — the Porter team went above and beyond for us on this process and made it so easy for us.

At first I was wary of all the moving parts we'd have to manage but they took care of a lot of complex things for us and let us have our site running over on Porter very quickly. Even at our not sky-high Heroku spend, the ~3 engineer-months we spent on this are probably paid back by now. Can't recommend them enough.


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