But it will be very useful for the socalled "cpu coins" like litecoins and others.
Actually, litecoin is dependent on cache-speed (
see this page), so depending on the cache-organization in Knight's Corner, it might not even end up being faster than a regular CPU.
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
SHA256 hashing only needs 1 thing: lots and lots of ALUs. Stuff like AVX, threads, and x86 just introduce structural dependencies that slow down the process.