Actually, (given certain basic equivalencies, which are a bit too
detailed to go into right now) you can run a decent render on ~0.25GPU
cores per CPU core assuming you're sharing the GPU core across multiple
viewer render pipelines, as opposed to heterogenous render threads. So,
for a sufficie
Your assumption is where the calculation goes off. AMD is releasing a
"Fusion" E-350 chip which puts the
CPU and GPU on the same chip, and which uses low power (18W), so you can
put a bunch of them
in a server box:
http://www.tomshardware.com/reviews/amd-fusion-brazos-zacate,2786-4.html
Early