I still don't really see how it would help with heat dissipation overall. Most low power desktop CPUs seem to run at around 45W these days. If you stacked 10 of

I still don't really see how it would help with heat dissipation overall. Most low power desktop CPUs seem to run at around 45W these days. If you stacked 10 of them, presumably you'd get somewhere around 450W. 100 of them would give you 4.5MW. First off, how do you get the electricity to power these, and secondly what do you do with the heat after it's left the CPU? For servers, you face the same problem. It's already possible to get power and heat density that is more than what your typical datacenter can handle. If the density increased by even 10 times we would presumably need some serious advances in cooling to be able to handle all those servers.