Yes I said that in my comment. Yes they might be useful for that - but when you start getting to prompts that are long enough to have any significant compute time you are going to need far more RAM than these devices have.

Obviously in the future this might change. But as we stand now dedicated silicon for _just_ LLM prefill doesn't make a lot of sense imo.

You don't need much on-device RAM for compute-bound tasks, though. You just shuffle the data in and out, trading a bit of latency for an overall gain on power efficiency which will help whenever your computation is ultimately limited by power and/or thermals.