OK, I'll bite....
It seems to me that using those GPU cycles is a really groovy way to crunch. But....
Comparing apples & pears is always interesting/difficult/wasteoftime/essential/etc.
The pears are mildly well described:- _128 Opteron cores on its Cray XT3 super_, _1,024 Power cores on its BlueGene/L super_.
The lemon, sorry apple ( 'tho I doubt it ), are somewhat more nebulous:- _personal supercomputer with two Tesla C1060 GPU co-processors_.
Of course, I am an old fart who has been locked in a cage for a few millennium, so what do I know? Help me out here folks. A _personal supercomputer_ (that well known er, appliance?) consists of what approximately? Running what approximately? At what cost approximately?
Not that I want to get picky or anything.
Paris, 'cos the angle is in the dangle.