Mmm....
I'm presuming it doesn't have the economies-of-scale of SHA256 ASICs, because the demand has been 1/50th for such a long time.
I think that the computational power in Bitcoin network is like 60k+ greater than the top 500 supercomputers in the world combined. Not going to bother myself with calculations, but I think that the difference is much higher...
P.S. LTC will have its days...