Yeah the Space Data Center companies completely gloss over this fact by saying "oh yeah and we'll need radiators 10x the size of our solar panels. NBD."
Because it's not 10x. If you cool the solar panels (which aren't black body absorbers for longer wavelengths) and GPUs to 80C through a heatpump and have the blackbody radiator at 120C it will approximately work out, 1:1.
