[spikels]

What temperature were you assuming?

Because the amount of energy radiated varies with the temperature to the fourth power (P=εσT^4).

Assuming very good emissivity (ε=0.95) and ~75C (~350K) operating temperature I get 808 W/m2.

[woah]

I was adding some generous padding and rounding up. I assume they'd try to get it to operate as hot as possible

[fouc]

They would most likely launch with TPUs designed for space and target lower temperatures, closer to 60C.