Well, CoinLab, for instance, is building a client meant to offer GPGPU cloud computation service and is hoping to draw from Bitcoin mining's excess GPU capacity (which will greatly expand once either "halving day" (block 210,000) arrives or ASICs start shipping in number.
Oddly, AMD GPUs yield more of their loyalty points now than NVidia, but once GPGPU computation rather than mining is the desired activity, NVidia hardware will yield better. So, if you have both AMD and NVidia, perhaps mining today through CoinLab will build up enough loyalty points to then be able to further milk the NVidia cards after halving day.
- https://bitcointalksearch.org/topic/ann-coinlab-protected-pool-99643
I am currently mining with coinlab, actually.
I just dont imagine that once these are available that they will outperform the top GPU's at that time. Or even the ones out now... Plus you can only get a motherboard with 4 CPU's vs 8 GPU's.
No facts, just my thought...