[foobiekr]

20B is slightly bigger than the Apple M! (10nm) and slightly smaller than the 32 core Epyc (14nm), which you should consider are both very substantial projects from a headcount, simulation, tools, licensing, etc.

To put it in perspective, a company a friend founded that is doing a very large but very regular ASIC for TSMC 10nm raised twice what you're ballparking and will end up doing another raise before tapeout. Chips nowadays are _expensive_ if you're anywhere near state of the art. The people who do very high performance chips are also very expensive.

But I'm also guessing that unless you're doing a bitcoin hashing chip, AI chip, or GPU, all of which is regular, your scale estimate is probably very off. If you're doing any of those, just don't.

That said, there are SOC vendors who do core plus, so it's possible that if this is just an accelerator, no matter how wide, you might be able to outsource the whole thing.