[aeternum]

Energy radiation scales T^4 so physics is really on your side here. If you can engineer GPUs to run a little hotter you get significant decreases in radiator size required.

[adrian_b]

That will have to wait 10 years, or even a few more years, for a transition from silicon to a semiconductor with a wider bandgap.

[aeternum]

I doubt that, there really wasn't much effort put to allowing GPUs to run hotter. You can always add a heat pump to create the thermal gradient of the GPU can't handle it itself.