x86 architecture, so 1MH/s per 1GHz. Lets assume that every core runs at that 1GHz then you get 50MH/s. A8-3850 Llano with 400 shader processors ("cores") on stock gets 70MH/s.
You forget 4 threads/core and avx are both something it can leverage. It has much potential but until it's available we wont really know, but.just look at what quick sync did for video transcoding... Game changer, probably not. contender? Good odds