China has the worlds most powerful supercomputer.
It includes 7168 M2050 Tesla GPU.
http://www.brightsideofnews.com/news/20 ... puter.aspx
By my rough estimate if an Octane render takes about 8 mins presently on a GTX460 - 224 cores - then this produces the same renders at 24 frames/sec assuming perfect scaling.
This is impressive but slightly underpowered I guess for the true Octane enthusiast...
Now what might get our attention is say the equivalent of 57,000 Tesla which would produce something with decent samples and size @24fps.
We tell them to come back when they have something worth showing us

Maybe 5 years time?...