i think this is all not more than just hot air i dont thin ki eth asics are true its not doable with the slow ddr3 rams even gddr3 ram ist to slow eth calculation is done by bandwith from rams and ddr3 or gddr3 are to slow i bet there will never be a miner that can do 600 mhs with just 750 watts of power the next 5 years
I'm not a pro regarding memory technology, but ethash algo seems to favor
fast random access to relatively small amounts of memory, and thats where
system ram excels compared to GDDR
that is more suitable at transferring large chunks of memory